Firefox 21 slow on startup, checked articles, dis all addins still slow ie is lightning fast on startup!

Firefox 21 is really slow on startup, I have disabled all addons, checked memory, optimized win 7, ran system mechanic but it is still slow, changed home page . IE 8.9.10 is lightning fast on startup.

A tad faster but still slow compared to IE 8,9,10 where it starts instantly.

Similar Messages

I've tried it all but still slow internet

I've been suffering from very slow connection speeds for months now. At first I thought it was my DSL ISP so I switch to Comcast HSI and it's a little faster but still nowhere near acceptable. I just got off the line with Apple support and I was stunned by the lack of imformation I received! My Apple Care subscription was a total waste of money. So I'm hoping someone here has a nugget of wisdom that will help me out.
Here's what I know:
HSI line out of modem is good. Plugging a PC into the same modem and cable gets 7mbps download speeds. My dual 1.8 G5 running 10.4.3 gets around 850kbps with the same cable and modem.
Problem exists whether I use Airport or ethernet. I am currently using ethernet to the modem to keep things simple.
I've zeroed out the drive and reinstalled the OS. (not fun)
I've trashed all caches.
I've tried with and without DNS addresses in the network preferences.
Flushed Safari and reset Safari.
Firefox and Explorer get the same slow speeds.
Logging in as new test user gets same speeds.
Tried lookupd -flushcache in terminal
Tried with and without Broadband Optimizer
Ran Onyx
Ran Disk Warrior
ipv6 on or off no difference. Currently off.
All proxys are off
Reset modem, unplugged all cables, zapped PRAM, unplugged and replugged a thousand times.
Repaired permissions at every update.
There is more but I can't remember them all...
I'm hoping this rings a bell with someone and they remember how they solved it. I love Apple and I've been Mac-Only since around 1998 but I'm really disappointed with their support performance today.
Any help will be appreciated.
David

Yes that is indeed slow and inline with your previous testing.
Couple things, you have dual 10/100/1000 ethernet ports in that computer right? I am not familiar with the insides yet to know if they are built-in's or if they are on an expansion card.
It is not likely that the PC laptop and your Mac are using the same brand of ethernet chips so there is an avenue for testing. Nor is it likely he may also have had gigabit ethernet capable ports.
The cable-modem wouldn't likely be a gigabit ethernet equipped unit but its worth checking its specs.
What I would want to do is three fold.
1. The ethernet ports on devices are usually auto-sensing for speed. However problems do occur in networks with some devices not playing well together in the sandbox so we have to force one or more of the devices to use a specific speed and what the call a duplex setting.
If for sake of an example that comcast modem only had a 10 megabit/second half-duplex port for you to plug in, if your computer was through auto-sensing goof-up talking 100 megabit at full-duplex duplex or 1000 megabit at full-duplex ethernet or even 10 megabit at full-duplex to that device you have communication error. At the correct speed but wrong duplex setting you can end up with framing errors and late collisions with devices.
2. You have dual network ports most likely on your computer. It would be worth a test to see if you can disable/shut one of them down and let the OS only have to handle the one.
3. If you have a plug in expansion card with ethernet on it, it would be worth a test if the two you have are built-ins and still not working. Also, and much easier would be to see if a friend or work has another Mac you can use for one day as a test to see if it works. If it does, that pinpoints it to something specifically unique about your computer, not the OS, still perhaps a setting in the OS, but I would focus more on the hardware differences (your network controllers). If you use the same cables and it works on the other Mac then you've eliminated that as well.
Hopefully lots of new ideas to ponder.
I also have some commands you can type in that can speed up your maximum throughput on the internet but while they can give you another 100-200KB/sec on downloads, we need a working base connection.
Jan J.

Mac Mini very slow at 4 gig memory, upgrade to 16 still slows down but takes a longer time

I bought a Mac mini a year ago. With an i7 and i terabyte and it cam with only 4 gig of ram. It worked fine for a while and i installed some apps then it started to get very slow. seeing the colorful "hourglass " turn round and round quite a few times. Then i went to the activity monitor where it told me that the memory used was about 3.89 gigs. I purchased a memory cleaner app from thr app store which helped a bit.
Today i upgraded to 16 gig memory and bang my computer ripped. The activity manager said i was using 6 gigs of ram and had 9.8 remaining.
after being on the internet for a couple of hours and using Firefox with about ten tabs open the computer started to get very slow again.
I checked the activity manager and it read 6 gigs used and the cash read a whopping 9 gigs. Did not think i would need the memory cleaner any more but after doing a clean it worked better.
Why did i get a whopping 9 gigs in the cash ? which is what it read after my computer slowed down again.

You may want to post in the Mac Mini forum, this is the iMac forum. If you would like me to I will ask the moderator to move the thread.

After closing Firefox to use IE8 or any other program, everything is very choppy and slow. I have to go into Taskbar, Processes, and close firefox.exe manually (which is using up all the memory/CPU). Then, and only then, does everything behave normally. W

After closing Firefox to use IE8 or any other program (like InterVideo to watch a DVD), everything is very choppy and slow. I have to go into Taskbar, Processes, and close firefox.exe manually (which is using up all the memory/CPU and should have closed before). Then, and only then, does everything behave normally. What is going on and what am I doing wrong or missing??
== This happened ==
Every time Firefox opened
== about a couple months ago and happens every time I close Firefox.

'''Kill Application'''
In Task Manager, does firefox.exe show in the '''Processes''' tab?
See: '''[http://kb.mozillazine.org/Kill_application Kill Application]'''
'''Causes and solutions for Firefox hanging at exit:'''
'''[[Firefox hangs]]'''
'''[http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit Firefox hangs at exit (Mozillazine article)]'''
'''[[Firefox is already running but is not responding]]'''
'''Safe Mode'''
You may need to use '''[[Safe Mode]]''' (click on "Safe Mode" and read) to localize the problem. Firefox SafeMode is a diagnostic mode that disables extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes before starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.
See:
'''[[Troubleshooting extensions and themes]]'''
'''[[Troubleshooting plugins]]'''
'''[[Basic Troubleshooting]]'''
If the problem does not occur in Safe-mode then disable all of your extensions and then try to find which is causing it by enabling one at a time until the problem reappears. You have to close and restart Firefox after each change via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.
'''''Other Issues''''': to correct security/stability issues
'''Update Java''': your ver. 1.6.0.19; current ver. 1.6.0.20 (important security update 04-15-2010)
''(Windows users: Do the manual update; very easy.)''
See: '''[http://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox#Updates Updating Java]'''
Do the update with Firefox closed.

Why does it say in the Firefox Safe Mode article that all of the changes are temporary while in Safe Mode, then later it says "Note: The following changes cannot be undone."?

Why does it say in the Firefox Safe Mode article that all of the changes are temporary while in Safe Mode, then later it says "Note: The following changes cannot be undone."?

When you open Firefox in Safe Mode, it automatically disables your custom settings, themes, and add-ons. THOSE changes are temporary.
However, if you click any of the boxes underneath the line, "You can make some or all of these changes permanent", and then choose "Make Changes and Restart", everything you checked will be forever changed, even when you start Firefox again in 'normal' mode. [See attached image for a preview of the Safe Mode options].
To be clear:
1. If you check any of the boxes but do NOT select "Make changes and restart", those things will not be changed at all in safe mode.
2. If you select any of the boxes and you DO select "Make changes and restart", you will permanently lose any of the items you checked (bookmarks (except for backups), user preferences, etc.).
If you performed the action in step 2 above, you will only be able to restore those things if you have a previously created back-up of your Mozilla Profiles folder (not the same as the Firefox program folder).
Hope this helps.

Firefox 9.01 keeps checking addon compatibility at startup. UGGH

Firefox 9.01 keeps checking addon compatibility at startup. The option is not checked and the previous addon to disable doesn't work. Ideas?

You can check these KB articles:
*http://kb.mozillazine.org/Preferences_not_saved
*https://support.mozilla.com/kb/Preferences+are+not+saved
It is possible that there is a problem with the file(s) that store the extensions registry.
Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.
*https://support.mozilla.com/kb/Profiles
New files will be created when required.
See "Corrupt extension files":
*http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
*https://support.mozilla.com/kb/Unable+to+install+add-ons
If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is a compatibility update available.

Since up dating my Firefox I can not play any games on Facebook they all run very slow, can someone please help me with a solution.

Since up dating my Firefox I can not play any games on Facebook they all run very slow, can someone please help me with a solution.It mainly seems to be with games.

RE: "P.S. I found it aggravating that I couldn't copy and paste text here, it wanted me to insert as a link or an image, how do you insert plain text?"
I take it you tried using the "right click" menu? That doesn't seem to work, as you noted, but, you should be able to paste text by pressing your CTRL key and while holding it down, press the "V" letter key.
CTRL + C = COPY
CTRL + X = CUT
CTRL + V = PASTE
HTH,
Ortho_Fan

Firefox + Flash + nbc (some shows) and cbs (all shows) slow

Flash is running slow when watching some shows on nbc and all shows on cbs in Firefox 3.5.8. I am running Firefox 3.5.8 because Firefox 3.5.10 will not install correctly on my system. Have noscript and adsblock installed. Have tried to disable both and still the same problem. adblock has to be disabled for cbs. Why is it that some shows work without any slow downs like Persons Unknown but Last Comic standing is slow?
Is there something that can be configured in Firefox to make flash work faster?
== URL of affected sites ==
http://
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2)

Thanks for the tip. It seems to have fix nbc a little. cbs is still slow.
Why has Firefox not fix it if they broke it?
If they can not fix it, which browser would you recommend that would have noscript and adblock? I have grown to like those two add ons.

Firefox very slow and high cpu usage!! (all other browse slow too)

Sorry, I asked it in 'Newbie Corner' , but still no resolved. so I asked here.
Hi all,
when i open a website just as www.sohu.com, my firefox (3.0.3) hang on, then display the web page very slow , and slow scroll , firefox cpu usage nearly about 100.
I tried some sloution,like modify /etc/enviroment to set MOD_DISABLE_PANGO=1,
or disable 'tell me if a web site ...' in firefox security option.
but still slow.
some people says it's must because flash or some js.
but when i try it in windows or ubuntu, it very fast, not like in archlinux.
so i think some thing wrong in archlinux. I need your helps.
thank you.
p.s.
1. pacman is very fast (the speed of wget about 400k/s)
2. gnome web browser like firefox , slow and high cpu.
3. the list of output of 'locale' about 11 lines.
4. i have already set host name like wiki says.
5. the system is a new system

http://wiki.archlinux.org/index.php/For … Bumping.27 ??

HEY SMART GUYS-CHECK YOUR LINK TO ARTICLE: Firefox makes random sounds KB article. CAN NOT ACCESS IT UNLESS YOUR ARE REGISTERED USER!!!!

Title says it all. New article "Firefox makes random sounds KB article" on main page http://support.mozilla.com/en-US/kb/Firefox+Support+Home+Page to help users with the Pac-man and siren sounds can only be accessed by those who are registered users. Not much help to most users here asking questions!!!
FIX IT!!!!!

Sorry, we got so much traffic on the site, it was taking a few minutes for the link to go live. I don't think a sticky is needed because most people posting to the forums don't read the forums first so it won't do much good.

After Upgrade to Yosemite, all apps are slow.

I upgraded to Yosemite and all applications are slow. ( as e.g.. starting to type in this box give me beachball for 2 seconds initially) A big difference in speed from Mavericks to Yosemite. Opening system preferences takes 3 seconds to load, and clicking on Users & Groups takes 25 seconds to open.
I do not have fire vault enabled. I did a safe boot and some apps did appear to open faster. Also did a repair disk and rebooted. No change. When Safari is open it takes 5 seconds to open a new window. I ran EtreCheck and the report is as follows;
Thanks for any help;( After pasting the EtreCheck text file, I clicked on this box to add the Thanks... , it took 2-3 seconds for the beach ball to stop spinning.)
Problem description:
After upgrading to Yosemite, all apps are slow,
EtreCheck version: 2.0.6 (91)
Report generated October 20, 2014 at 11:46:01 AM MDT
Hardware Information: ℹ️
iMac (24-inch, Early 2009) (Verified)
iMac - model: iMac9,1
1 2.66 GHz Intel Core 2 Duo CPU: 2-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1067 MHz ok
BANK 1/DIMM0
4 GB DDR3 1067 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
NVIDIA GeForce 9400 - VRAM: 256 MB
iMac 1920 x 1200
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 0:23:55
Disk Information: ℹ️
WDC WD6400AAKS-40H2B0 disk0 : (640.14 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 639.28 GB (130.48 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5670S
USB Information: ℹ️
Apple Inc. Built-in iSight
Burr-Brown from TI USB Audio CODEC
Canon MP480 series
Western Digital My Book 1140 2 TB
S.M.A.R.T. Status: Verified
EFI (disk2s1) <not mounted> : 210 MB
MyBookMovies (disk2s2) /Volumes/MyBookMovies : 2 TB (549.58 GB free)
LaCie LaCie Hard Drive USB 1 TB
S.M.A.R.T. Status: Verified
EFI (disk1s1) <not mounted> : 210 MB
Time Machine Backups (disk1s2) /Volumes/Time Machine Backups : 795.40 GB (322.99 GB free)
Time Machine Airdisk (disk1s3) /Volumes/Time Machine Airdisk : 100.77 GB (55.52 GB free)
EXCHANGE (disk1s4) /Volumes/EXCHANGE : 100.09 GB (45.35 GB free)
ALCOR Generic USB Hub
Prolific Technology Inc. USB-Serial Controller
Prolific Technology Inc. USB-Serial Controller
Hewlett-Packard hp LaserJet 1012
Apple Computer, Inc. IR Receiver
Prolific Technology Inc. USB-Serial Controller D
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Parallels Desktop.app
[not loaded] com.parallels.kext.hidhook (9.0 24251.1052177) Support
[not loaded] com.parallels.kext.hypervisor (9.0 24251.1052177) Support
[not loaded] com.parallels.kext.netbridge (9.0 24251.1052177) Support
[not loaded] com.parallels.kext.usbconnect (9.0 24251.1052177) Support
[not loaded] com.parallels.kext.vnic (9.0 24251.1052177) Support
/Applications/Toast 11 Titanium/Spin Doctor.app
[not loaded] com.hzsystems.terminus.driver (4) Support
/Library/Application Support/VirtualBox
[loaded] org.virtualbox.kext.VBoxDrv (4.3.12) Support
[loaded] org.virtualbox.kext.VBoxNetAdp (4.3.12) Support
[loaded] org.virtualbox.kext.VBoxNetFlt (4.3.12) Support
[loaded] org.virtualbox.kext.VBoxUSB (4.3.12) Support
/Library/Extensions
[not loaded] foo.tun (1.0) Support
/System/Library/Extensions
[not loaded] com.hzsystems.driver.CDSDAudioCaptureSupport (1.5) Support
[loaded] com.prolific.driver.PL2303 (1.5.1 - SDK 10.6) Support
[not loaded] com.roxio.BluRaySupport (1.1.6) Support
[not loaded] com.wdc.driver.1394HP (1.0.9) Support
[not loaded] com.wdc.driver.USBHP (1.0.11) Support
/Users/[redacted]/Library/Services/ToastIt.service/Contents/MacOS
[not loaded] com.roxio.TDIXController (2.0) Support
Startup Items: ℹ️
HP IO: Path: /Library/StartupItems/HP IO
Startup items are obsolete and will not work in future versions of OS X
Problem System Launch Agents: ℹ️
[loaded] com.paragon.NTFS.notify.plist Support
Launch Agents: ℹ️
[running] com.abbott.mal.launchclient.plist Support
[loaded] org.gpgtools.gpgmail.enable-bundles.plist Support
[loaded] org.gpgtools.gpgmail.patch-uuid-user.plist Support
[loaded] org.gpgtools.Libmacgpg.xpc.plist Support
[loaded] org.gpgtools.macgpg2.fix.plist Support
[running] org.gpgtools.macgpg2.shutdown-gpg-agent.plist Support
[loaded] org.gpgtools.macgpg2.updater.plist Support
Launch Daemons: ℹ️
[running] com.abbott.mal.malserver.plist Support
[loaded] com.adobe.fpsaud.plist Support
[running] com.freemacsoft.appcleanerd.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[running] com.wdc.SmartwareDriveService.plist Support
[running] com.wdc.WDSmartWareService.plist Support
[loaded] org.gpgtools.gpgmail.patch-uuid.plist Support
[not loaded] org.virtualbox.startup.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.google.keystone.agent.plist Support
[invalid?] com.macpaw.CleanMyMac.trashSizeWatcher.plist Support
[invalid?] com.macpaw.CleanMyMac.volumeWatcher.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist Support
[failed] com.macpaw.CleanMyMac2Helper.trashWatcher.plist Support
[running] com.vladalexa.MagicPrefs.plist Support
[not loaded] org.virtualbox.vboxwebsrv.plist Support
[running] ws.agile.1PasswordAgent.plist Support
User Login Items: ℹ️
AppCleaner Helper Application (/Applications/AppCleaner.app/Contents/Library/LoginItems/AppCleaner Helper.app)
Messages Application (/Applications/Messages.app)
MagicPrefs UNKNOWN (missing value)
Calendar ApplicationHidden (/Applications/Calendar.app)
Mail ApplicationHidden (/Applications/Mail.app)
Contacts ApplicationHidden (/Applications/Contacts.app)
PowerboxInjector Application (/Applications/PowerboxInjector.app)
Internet Plug-ins: ℹ️
LogitechHarmony: Version: 2.0 - SDK 10.7 Support
DirectorShockwave: Version: 12.0.4r144 - SDK 10.6 Support
Google Earth Web Plug-in: Version: 6.0 Support
Default Browser: Version: 600 - SDK 10.10
Flip4Mac WMV Plugin: Version: 3.2.0.16 - SDK 10.8 Support
OfficeLiveBrowserPlugin: Version: 12.2.0 Support
Silverlight: Version: 5.1.20913.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 Support
Flash Player: Version: 15.0.0.189 - SDK 10.6 Support
iPhotoPhotocast: Version: 7.0
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 Support
AdobePDFViewer: Version: 9.5.5 Support
GarminGpsControl: Version: 4.2.0.0 - SDK 10.8 Support
EPPEX Plugin: Version: 4.1.0.0 Support
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
Safari Extensions: ℹ️
1Password
AdBlock
ClickToFlash (Disabled)
Print Plus (Disabled)
ClickToPlugin (Disabled)
OpenIE
3rd Party Preference Panes: ℹ️
Flash Player Support
Flip4Mac WMV Support
GPGPreferences Support
Growl Support
MacFUSE (Tuxera) Support
MagicPrefs Support
Paragon NTFS for Mac ® OS X Support
Perian Support
QuickTime Player X Preferences Support
WDQuickView Support
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Destinations:
Time Machine Backups [Local]
Total size: 795.40 GB
Total number of backups: 29
Oldest backup: 2014-10-08 20:15:48 +0000
Last backup: 2014-10-20 17:32:33 +0000
Size of backup disk: Excellent
Backup size 795.40 GB > (Disk size 0 B X 3)
Top Processes by CPU: ℹ️
 10% WindowServer
 5% syncdefaultsd
 4% Safari
 1% AppleSpell
 0% com.apple.iCloudHelper
Top Processes by Memory: ℹ️
266 MB mds_stores
258 MB Safari
180 MB Finder
137 MB WindowServer
136 MB com.apple.WebKit.WebContent
Virtual Memory Information: ℹ️
3.93 GB Free RAM
2.97 GB Active RAM
443 MB Inactive RAM
978 MB Wired RAM
1.82 GB Page-ins
0 B Page-outs

You could do that, but when setting up your new iMac it is a much better idea to transfer only your existing User Accounts. In other words when Setup Assistant appears, de-select "Applications", "Computer and Network Settings" and "Other files and folders". That way you will eliminate the possibility of reinstalling potentially incompatible software from your existing Mac or its TM backup. It's best to create new printer queues and preferences anyway.
Your venerable HP 1012 will probably work without any difficulty but if you need its driver download it here. If it gives you trouble try OS X's generic PostScript driver.
After configuring your user account, install original versions of your essential software from their original sources. In other words if you installed them via download from the developer's website, download them again. You might need license keys so gather them. Obviously the Mac App Store makes things easy since anything you obtain from there is already linked to your Apple ID and is easily reinstalled by going to your Purchases page.
Don't reinstall things like AppCleaner, CleanMyMac, Western Digital "Smartware" or any of that junk. You don't need it. MacFUSE is outdated. Research Prolific Technology for potential updates for their serial controller. The one you have may work, or not, but you should re-download its driver.
Consider abandoning Microsoft altogether and migrating to better solutions such as Pages, Numbers, and Keynote. They are all free with a purchase of a new Mac and are far more integrated with OS X than anything Microsoft will ever be able to accomplish.
The Burr-Brown USB device is unknown to me, so research TI's website for support if you need it.
If your essential software was distributed on optical media, you can use OS X's "DVD or CD sharing" feature to remotely mount the older iMac's optical drive so that you can install its software. It will work as though that drive were physically installed on your new Mac. Having said that, anything that was distributed on optical media is highly likely to have been outdated a long time ago.
If your essential software is old, orphaned, no longer supported, or is no longer available, meaning you have the only viable copy, the only option is to transfer it from the TM backup or older Mac. In that case be very cognizant of the likelihood for incompatibility, and have a plan for uninstalling it should it cause adverse effects. Creating a new TM backup is the way to do that. A new external HD dedicated to the new Mac is a cheap investment. When you are certain you no longer require the older Mac's TM backup, you can erase it and use it as an additional, redundant TM backup or "clone" repository – whichever you decide is best for your backup needs.

I just downloaded the latest version of firefox (5.0). Can I delete all the older versions that are still on my drive? 2) When I call up some web sites sometimes the web site comes up 3 or 4 times...how do I stop this from happening?

I just downloaded the latest version of firefox (5.0). Can I delete all the older versions that are still on my drive?
When I call up some web sites sometimes the web site comes up 3 or 4 times...how do I stop this from happening? For example if I click on a link the exact same link comes up 3 or 4 times and I have to manually delete all of them but one.

Do you organise your email into separate folders, or do you just let it accumulate in the Inbox?
I would strongly advise you not to let it sit in the Inbox.
When you see this happening, try right-click on the affected folder, select '''Properties''' then '''Repair Folder'''.
Large folders (actually, a folder in Thunderbird is stored as a file, so it is sensitive to file size limits set by the underlying file system) can be problematic. This is one reason not to let messages collect in one folder. I use Thunderbird's Archive folders so that accumulated mails over several years can happily coexist because they are effectively stored in many small folders. No single mail store folder then exceeds the 2GB or 4GB sizes that have been known to stress the OS. I appreciate that current builds of Thunderbird and a modern 64-bit OS should be able to cope, but practically I find it slows down when given huge files, so I err towards a pragmatic solution; a large number of not very big files.
Archives are searchable, and a Saved Search folder can give you a virtual composite folder allowing access to the entire Archive.

Copying files either very slow or doesn't work at all

I've tried copying files from a DVD to an external drive, and from one external drive to another, and I've been running into troubles on my Mac Pro, namely, I get an error code 36 (corrupted files) and the copying process hangs, requiring me to reboot. However, I was able to copy the files from the DVD to my laptop HD, so I don't think that corrupt files is the problem. After rebooting my Mac Pro, I was able to copy files from one external drive to another, but it was incredibly slow (about 1GB per hour), and I was still unable to copy files from the DVD to an external drive. I've verified all the disks with Disk Utility, and I've repaired disk permissions on my Mac Pro HD but apparently need to re-run since when I verify permissions again, I'm still getting a lot of errors or comments like "Warning: SUID file "usr/bin/rlogin" has been modified and will not be repaired". Scanning my Mac Pro HD for viruses, quite a few files are coming up with the comment "did not have permission to open the file." Other than continuing to repair disk permissions, does anyone have suggestions about what might be causing this and/or on possible next steps?

A little further info - I checked permissions and I have permission to copy the files in question. Also, it seems that most of the errors that pop up when I verify permissions are of the type that can safely be ignored, according to Apple -- I'll go through the list later and cross-check them to make sure that they're all ignore-able, but thats what they appear to be.

Upgraded to FF4 sites were slow loading or not loading at all - then I discovered it downloads if I keep moving the cursor. If I stop moving the cursor the downloading stops or slows to a crawl again.

Upgraded to FF4 sites were slow loading or not loading at all - then I discovered it downloads if I keep moving the cursor. If I stop moving the cursor the downloading stops or slows to a crawl again. What do I do so no need to keep having to move cursor?THE DOWNLOADING ICON STOPS MOVING UNLESS I KEEP MOVING THE CURSOR AROUND.

Clear Cookies & Cache
* https://support.mozilla.com/en-US/kb/Template:clearCookiesCache
Clear the Network Cache
* https://support.mozilla.com/en-US/kb/How%20to%20clear%20the%20cache#w_clear-the-cache
Troubleshooting extensions and themes
* https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes
Check and tell if its working.

When I downloaded the new Firefox about a week or two ago all my bookmarks, and add-ons disappeared and I want you to give them back to me asap?

When I downloaded the new Firefox about a week or two ago all my bookmarks, and add-ons disappeared and I want you to give them back to me asap?

You shouldn't wait that long to ask advice. Firefox only keeps a (rotating) backup of bookmarks for the last 5 days that you started Firefox. So you may be out of luck.
You can check that you still use your old default profile that had your bookmarks. 
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Lost_bookmarks
* http://kb.mozillazine.org/Locked_or_damaged_places.sqlite
For the extension, see "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
If you see disabled extensions that are not compatible on the next start in "Tools > Add-ons > Extensions" then click the "Find Updates" button to do a compatibility check.

Firefox 21 slow on startup, checked articles, dis all addins still slow ie is lightning fast on startup!

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