Firefox 6 - Typing Slows to unusable speed in many sites including gmail

Wasn't a problem with Firefoox 3, upgraded to 5 and now many sites including gmail, the typing is reduced to unusable speeds with big pauses. Throughout. I've done complete re-install from scratch and it's still a problem. If I start in safe mode it works fine. I have not added any addins, this is virgin install. It's annoying because it's now unusable so I' m back to hated explorer instead.

Just updated to FF 7 and tried a new blank profile too. Same problem. The one inconsistency is that if I start in safe mode it's not a problem. So something happens in safe mode other than what happens in a blank profile or if I try and restart with addons or anything disabled.

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Firefox 5.0 pages dont automaticly update on many sites. I have to manually reload.

Craigslist, audiokarma, tubes asylum and some others don't automaticly reload. Up until august 3 they worked fine.
If I shutdown and restart, they still don't update. In order to update the page I must right click and reload.

I dont know if I should update to firefox 5.0 .. I dont understand if I decide to upgrade to firefox 5.0 will my avast virus protection still protect my computer .. it says it will disable and later when its compatible it will then add my avast! WebRep 20110101 .. does this mean I am without my virus protection on my Pc

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problem continues after downgrade to v4.0.1. message is: "The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression. Please contact the web site owners to inform them of this problem." Well, I'm contacting Mozilla.

You can check the network.http.* prefs on the about:config page. 
Reset these user set (bold) network.http prefs to the default value via the right-click context menu -> Reset.
*network.http.accept-encoding (default: gzip,deflate)
*http://kb.mozillazine.org/network.http.accept-encoding

Since installilng Adobe Reader 9 Firefox is very slow & "not responding" How can this be fixed?

Yesterday I installed Adobe Reader 9. Also Firefox became incredibly slow and I keep seeing strange site names in the lower left of the screen. I keep getting "not responding messages", and in 1-2 minutes the screen I wanted comes up. I don't know if they are related. Norton keeps finding lots of "cookies" to remove as well. But that happened prior to this issue.

Try updating Java via Windows Control Panel. The current version is 1.6.0_24. The version you appear to be running is 1.6.0_20

Latest update of Firefox is REALLLLLY slow. Is it just all the extra functionality that has been added or is there a button I need to press to make it the same speed as it use to be. Can I downgrade to last version?

Latest update of Firefox is REALLY slow. Is it just all the extra functionality that has been added or is there a button I need to press to make it the same speed as it use to be? I'll have to start usin safari again as this isn't funny anymore
Can i retro grade back to the last version?

uninstalled firefox ....deleted all files still remaining under mozilla firefox directory in program files ... to avoid having to reprogram all my settings, reisntall all addons as well .. I did not remove anything from mozilla firefox that is stored in either appdata or under the windows users directory (if any)
... the as suggested reinstalled the latest version of the firefox browser using the link you provided in the email ..; tested and several issues still remain present and unresolved ....
so please this is urgent or I will have to jump browsers and start using chrome .. because we work 14 hours a day 6 (sometimes 7) days a week, to get ready for the launch of our newest venture and we cannot lose that much days on browser related issues ... so please instead of putting me through week long step process .. of do this .. do that .. can you please actually look into the issue from your end .. I use firefox for so many, many years thta I deserve this kind of support .. thnx Robert

Firefox browser very slow signing in and moving from one website to another

firefox browser very slow signing in and opening different websites.
== Operating system ==
Windows xp

Hello BJ.
This kind of issues are, unfortunately, more common and the we'd like. Thankfully, 99% of the cases are very easy to solve. However, you do need to diagnose what your exact problem is. Do this:
#run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe-mode] to disable all extensions, themes and plugins. If this fixes your issues, be them with RAM or CPU usage, then you know it's a problem with plugins, themes or extensions. Proceed to number 2. If safe-mode doesn't fix the issues, then read bellow, after this list;
#update all extensions, themes and plugins in your Firefox. If this doesn't solve the issues, proceed to the following number;
#disable all extensions, themes and plugins in your Firefox (not running safe-mode). Being certain that, as in safe-mode, the problems you're having have gone away, enable one plugin at a time. You should be certain that you WANT that plugin to be enabled, so keep your overall number of plugins as low as possible. When you encounter the problems, you know you've found a problematic plugin, so disable it for good. Keep enabling all plugins (except problematic ones) until you've gone through them all.
#enable one extension at a time. Again, be certain that you WANT that extension to be enabled, so keep your overall number of extensions as low as possible. Also, try the theme you want to have installed so see if that is what's causing the problem. When you encounter the problems, you know you've found a problematic extension/theme, so disable it for good. Keep enabling all your extensions (except problematic ones) until you've gone through them all;
#you're done! You've fixed your problems with problematic add-ons. If you want to keep using those problematic add-ons, please contant their author for support.
Ok, if disabling all extensions and plugins through safe-mode didn't work to bring Firefox's CPU and RAM usage to good levels, then you have different issue. The most likely scenario is that you have a third party software running on your computer that is messing with Firefox. Do as follows:
#try reinstally Firefox. No data will be lost. You can get the latest version for free at [http://www.getfirefox.com/ getfirefox.com]. If that doesn't fix the problem, proceed;
#do a virus/malware check on your computer. If this doesn't fix it, proceed;
#disable all software running in the background that you don't want to have running in the background (in windows, this is done by pressing WINDOWS+R in your keyboard, typing "msconfig" (without the commas) and pressing enter. Now, under the "Startup" tab, you can uncheck the software you don't want, and reboot your system for changes to take effect. If you're unsure of what software you want running, ask someone with more experience). If this doesn't fix your issues with Firefox, proceed;
#check your firewall/antivirus/security suite for enabled functions/features that you don't want and/or may be conflicting with Firefox. You'll find that these features are most likely tied to Internet Security features, such as link scanners or URL checkers and the like. If you're not sure they are conflicting with Firefox, simply try to disable them to see whether or not that's true. As long as you don't browse the web with your antivirus completely off and your firewall completely turned off, there should be no problems. If this doesn't solve the issues, proceed to the following number;
#check your operating system security options, mainly advanced options that are not configured by default. While it's very unlikely that this may be the cause of the problem (after all, it's the last item on the list), it's remotely possible. If this doesn't work, proceed to the following point;
#clean up your OS registry, using appropriate software. If this doesn't do it, I'm out of ideas. Except make sure you've followed my instructions correctly.

Firefox becomes really slow then eventually unresponsive when loading a page with many hires images. Unsual high memory usage up to 2gigs just for firefox. Was never a problem with v3.6.

When loading a page with many hires images, Firefox becomes really slow and scrolling becomes jumpy then eventually becomes completely unresponsive. Unusual high memory usage of up to 2gigs just for firefox when loading these pages. This was never a problem with v3.6.

I encountered the same type of problem. Firefox running terribly slowly and slowing down my entire machine (Core i5 with 256GB SSD). Searching the forums, I found a couple of things about troubleshooting performance issues, one of which was to use '''hardware acceleration''', that is on by default. It was turned on on my PC, '''so I tried deactivating it, and it worked!'''
So doing the exact opposite as Mozilla support said solved the problem. It is really a pain now to work with Firefox. I'm using it because I have no choice, but I'd recommend IE and Chrome over Firefox... Whatever, the market will decide once Firefox has become to crappy...

Firefox is very slow to respond when opening and nearly always stops responding altogether even refusing to react to Task Manager "End Program@ command. The "not responding@ error message also comes up during navigation on line.

Firefox is very slow to respond when opening and nearly always stops responding altogether, even refusing to react to the Task Manager "End Program" command. The "not responding" error message also comes up during navigation on line. Several attempt have to be made to get on line. A loss of stability seems to be endemic at the moment.

Try following the instructions here: [[Firefox hangs]]

I have IE & Firefox on both my laptop and desktop. Why is Firefox so much slower than IE7? Firefox seems to take forever to load pages!

I have a HP laptop & Dell desktop with IE7 and Firefox. I use Firefox more as I like it better than IE, yet the pages in Firefox load so slow. I thought the new version of Firefox was so much faster, but it seems to drag along and take forever to load pages. Why is this??
== This happened ==
Every time Firefox opened
== 6/17/2010

Please ask your question on a forum for the Flash Player

Firefox runs extremely slow on my Macbook Pro after upgrade to 5.0.1. It is unbearable.

I upgraded to 5.0.1, then to 6.0, and Firefox still runs slow. Gets stuck for a minute when I open new windows and type a Google search. The version I had before 3.6.x handled my rapid-fire new window searches no problem, but now I find myself waiting while Firefox locks up my whole computer for a minute or so.
I uninstalled 6.0 and reinstalled 3.6.21, but it is still very laggy.
Please give me a suggestion on how to fix this, I've tried using other browsers and don't like them. I'm in my last year of nursing school and don't want to have to learn another browser!!

That are 2 very good leads, but unfortunately I already tested that: I uninstalled all fonts, so there are only system fonts left - no improvement. I also started the admin account without any start elements (pressing "shift" during boot) - no improvement. The processes (all of them) except Illustrator are all at 0%, some can reach 0,7% - only Illustrator itself is at 100,4% for these few seconds. There is no difference between the admin account and the second user account regarding the Activity Monitor.
But the solution must be somewhere in the difeerence between the two accounts - user preferences, application support files, ???

Firefox is extremely slow to shutdown

For me this a very annoying problem!
Firefox is '''extremely slow''' to shutdown, and I can't imagine what is it doing for so long after I have closed all frames and windows (note that I am '''not '''requesting to save the session).
I tried the solutions posted in older posts (https://support.mozilla.com/it/questions/809195) with no effect. The only add-ons that I have active are the Norton tools (I have Norton Internet Security 2011) and NoScript, plus sometimes Downloadhelper,
but I tried to disable everything and the problem remains, so it's something in the Firefox core.
After a short navigation the delay in closing Firefox is tolerable, but after having surfed the net for a while the delay may get huge, like 5' or even 10'! It's incredible!
The process monitor displays a firefox process taking a lot of memory (> 500 MB sometimes) and many plugin-container processes that also take a long time to close.
Before shutting down firefox requests even more memory, so that the allocated memory has a peak, then it finally drops.
Another strange thing is that if I kill the firefox process I get the memory quickly freed without any apparent damage, so what?
This problem has showed up with the latest versions of Firefox (4 and 5), I don't remember such a behavior one year ago or more.
I would appreciate very much some help and insight from someone of the developers, as well as feedback from other users, of course.

Are you using Clear Recent History to clear the Cookies when you close Firefox?
*https://support.mozilla.com/kb/Clear+Recent+History
That can cause plugin-container processes to appear that Firefox opens to clear cookies from plugins.

Firefox became incredibly slow on every web page

Hi,
My Firefox became really slow on all the web pages for unknown reason since one month ago, while I haven't installed any new features and was working with the web sites I used to use. Since then I've switched off most of the plugins such as Flash Player, as I suspected that they might have caused the slowness. But it didn't make any difference.
Working with Firefox has really become a pain now as it reduced my efficiency from 100 to 0. Basically every action I take with keyboard or touchpad has a delay, even clicking on a tab it takes 10 seconds or so to switch to that tab, and every time when launching Firefox, my laptop's CPU goes straight up and remains at 100%. Besides it crashed frequently, or pages became wholy black after some time, which forced me to restart many times a day, even if really few tabs are opened.
I tried to check my plugins through "plugincheck" from Firefox, but it has kept loading there with "Checking with Mozilla on the status of your plugins" for hours without showing anything.
I'm running Windows 7 Service Pack 1 with 3 GB of RAM, and more than half of hard drive space remain free. I also have Google Chrome on my laptop but I still prefer Firefox, if this issue can be solved!
Thanks for any help! :-)

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
*https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating

Why is the new firefox constantly blinking on my screen? everything else is fine but firefox now blinks and is unusable in 4.0

why is the new firefox constantly blinking on my screen? everything else is fine but firefox now blinks and is unusable in 4.0

Hi DGuerra, based on a past thread, the missing comments may be related to using avast! and its browser add-on(s).
Firefox is so easy to customize that it's not really surprising to find differences between two systems. These can relate to the menu choices (orange Firefox button or classic menu bar), toolbar layouts, and of course, add-ons.
If you have a preference for one setup versus another, hopefully these articles can equalize some of those layout issues:
* [[Display the Firefox button menu instead of the menu toolbar]]
* [[Customize Firefox controls, buttons and toolbars]]
You can compare extensions on the Add-ons page. Either:
* Ctrl+Shift+a
* orange Firefox button (or Tools menu) > Add-ons
In the left column, click Extensions.
Perhaps you can get the two side-by-side to make it easier, or to extract a text list, you can use the troubleshooting information page. Either:
* Help > Troubleshooting Information
* type or paste about:support in the address bar and press Enter
The button in the upper left corner "Copy text to clipboard" will grab the configuration information from entire page.

Firefox 4.0 slow start & stop

Firefox 4.0 slow starting up!
Firefox is very slow shutting down.

In Firefox 4.0 you can configure the loopback address by checkmarking "Use system proxy settings" which is actually the default, in Tools | Options | Advanced | Network (tab), then click the Settings button.
I don't know of a firewall which doesn't allow you to configure it in different ways though. Which one is it if you don't mind me asking?

I want to use the speed dial extension when I start firefox. I have the option checked in speed dial settings but firefox does not open to the speed dial. How do I get this to work?

I want firefox to open up to the speed dial add-on so I can use it as my start page. In the speed dial options I have checked the option to start firefox in the speed dial but when I open firefox it doesn't open the speed dial.

Sorry, I don't use that add-on, and I don't see a SpeedDial support forum listed on the download page. 
Here is the SpeedDial homepage. 
http://speeddial.uworks.net/
http://speeddial.uworks.net/manual.html

Firefox 6 - Typing Slows to unusable speed in many sites including gmail

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