Safari extensions slowing down browser

Hi!
Lately, I've noticed a degradation of performance and speed in my Safari browser after installing a few extensions, but I just love my new extensions too much to remove them.
Safari 5 is great! It works speedily and powerfully and pulled me towards it away from Chrome and Firefox. However, lately, the lag and, the crashing and the poorer performance all together are really irritating me to the limits. Its strange how I am not one of those who completely redesign the browser with so many extensions. I'm actually far from that. I only have about four tweaks installed and I hate the behaviour I'm experiencing these days.
All Im asking is for a short-term fix to this error and, over time, a look into this by Apple for a permanent bandage to this glitch. I'm very sure they'll do this better than the rest very soon and am just waiting anxiously for results.

Deleting Safari caches like recommended will not help. Bad code of specific apps are the reason. Try this: deactivate ALL extension. Stop the time for the complete run of *SunSpider JavaScript Benchmark* http://www2.webkit.org/perf/sunspider/sunspider.html (MyMacbookPro Core2Duo 2.33Ghz, Safari_5.0.2: 18sec) and the note the result of the test (MyMacBookPro: 328,5ms +/- 0.7%. During the run monitor the CPU usage (MyMacBook: both Core are quite equally used, CPU-load floats from one to the other and back but never only one used and never more than approx. 80% of the possible 200%). Than switch on your first Extension (one after one and never two at the same time), Run SunSpider and monitor like recommended. Bad coded Extensions like AdBlock do influence run-through time of Sunspider like **** (MyMacbook with only AdBlock Extension activated: 1min34sec - compared against the 18sec without Adblock: 522% slower!!!!) and CPU-load (MyMacBook with AdBlock: 100%, one Core totally blocked - no more floating around between both Cores. The SunSpider results stay bretty pretty much the same (MyMacBookPro with AdBlock: 348,5ms +/- 13.4%). Bad Safari Extensions do extend the loading time of Java-Code dramatically (by over 500%) and do chance unfavorably the CPU-Load during the execution of the JAVA-Code. With other words: Bad coded Extensions are a bottleneck to push Java-Code from the Web to Safaris hyper-fast Java-Engine. As a result I did go back to the old standalone and SIMBL-based versions of AdBlock and ClickToFlash.

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Safari suffering slow down when browsing Facebook

Morning everyone,
Well what can i say, the title says it all.
When browsing Facebook with Safari (version 6.0.1) after about 10 minutes or so, Safari becomes very unresponsive, massive slow down, freezing, beachballing etc, any other sites im on whilst the Facebook tab is open also suffers too,
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Any help resolving this would be greatly appreciated.
Its on a Macbook Pro Retina running ML 10.8.2
(Bit new to the mac so please be gentle ;-))
thanks
Scotty
POSTED TWICE!!
Apologies...Please delete!

I responded to you here > https://discussions.apple.com/thread/4459791?tstart=0
Please do not post duplicate topics.

Error message saying a script is running and is slowing down browser...stop script or continue?

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Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode
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Safari is slowed down with CGContextClipToRect: invalid context errors

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I've done the usual permission repairs, rebooting, etc. but to no avail.
Any thoughts?
Thanks

Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins and log in as Guest. For instructions, launch the System Preferences application, select Help from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box.
While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem(s)?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
Note: If you’ve activated “Find My Mac” or FileVault in Mac OS X 10.7 or later, then you can’t enable the Guest account. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Note: If FileVault is enabled under Mac OS X 10.7 or later, you can’t boot in safe mode.
Test while in safe mode. Same problem(s)?
After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of steps 1 and 2.

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Search for dom.ipc.plugins.flash.disable-protected-mode in the list of preferences.
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Close Firefox.
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Thanks anyway Mr.

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AxL wrote: "Then you can of course "Reset Safari" (in the Safari menu). This will get rid of all old caches that you don't use/visit anymore."That's dangerous advice.
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Two other ways to speed up Safari:
• Empty it's cache: Command-Option-E.
• Quit and relaunch it if you've had it open for several days and visited many sites.
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Dr. Smoke
Author: Troubleshooting Mac® OS X

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Try to Full-Reset the safari. It may help you.

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Message was edited by: John Tobey1
Message was edited by: John Tobey1

1. Go to Home/Library/Cookies and delete the Cookies.plist file.
2. Go to Home/Library/Caches/com.apple.Safari and delete the contents of that folder.
3. Go to Home/Library/Caches/com.apple.Safari/Web Page Previews and delete the contents of that folder.
4. If you don't want to use the Top Sites or Cover Flow features, open Terminal and paste in this command:
defaults write com.apple.Safari DebugSnapshotsUpdatePolicy -int 2
then press Enter or Return and quit Terminal
5. Go to Home/Library/Caches/Metadata/Safari and delete the contents of that folder.
6. Go to Home/Library/Caches/Safari and delete the contents of that folder.
7. Go to Home/Library/Safari and delete these files (if you have them):
Downloads.plist
History.plist
Form Values
LastSession.plist
WebpageIcons.db
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Is your problem with Safari on the iPad, or some MacBook Air?
Are you sure that the ASUS firmware is tested with the device having trouble and its operating system?
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Safari is slow to open and close. It also slows down other apps while running. Should I reload safari and if so, how do I do so?

Safari is slow to open and close. It also slows down other apps while it is running. How can I resolve this issue?

From the Safari menu bar, select
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From the Safari menu bar, select
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Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then copy it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click the line of text below to select it:
kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}' | open -f -a TextEdit
Copy the selected text to the Clipboard by pressing the key combination command-C. Then click anywhere in the Terminal window and paste (command-V). A TextEdit window will open. Post the contents of that window, if any — the text, please, not a screenshot. You can then close the TextEdit window. The title of the window doesn't matter, and you don't need to post that. No typing is involved in this step.
Step 2
Repeat with this line:
{ sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix)|org\.(amav|apac|cups|isc|ntp|postf|x)/{print $3}'; sudo defaults read com.apple.loginwindow LoginHook; } | open -f -a TextEdit
This time you'll be prompted for your login password, which you do have to type. Nothing will be displayed when you type it. Type it carefully and then press return. You may get a one-time warning to be careful. Heed that warning, but don't post it. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
Note: If you don’t have a login password, you’ll need to set one before taking this step. If that’s not possible, skip to the next step.
Step 3
launchctl list | sed 1d | awk '!/0x|com\.apple|org\.(x|openbsd)/{print $3}' | open -f -a TextEdit
Step 4
ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts 2> /dev/null | open -f -a TextEdit
Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 5
osascript -e 'tell application "System Events" to get name of every login item' | open -f -a TextEdit
Remember, steps 1-5 are all copy-and-paste — no typing, except your password. Also remember to post the output.
You can then quit Terminal.

Safari extensions slowing down browser

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