Since downloaded the last update, Firefox uses 90% of my CPU power slowing my pc to a crawl, why?

I switch on my pc and open Firefox and then the whole pc slows down to a total crawl, the page i am trying to open will take about 5 minutes to open. I try to close Frirefox but the whole program freezes and I have to force close it, sometimes I have to shut down the entire computer and start again. When I open task manager to see if there are other things running in the background it shows Firefox as using up a whopping 90-99% of my cpu power. If I wait for up to 20 minutes from when I first turn on my pc the problem seems to go away. But there are no other programs running on the machine to make it so slow. Not sure if this is the usual crap I have to deal with for running Vista or if its something to do with your latest update, I had no problems until after I had the update.

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locations chrome://browser/content/browser.xml
Line Number 1191, column 20:
utton id="back-forward-dropmarker" type="menu" chromedir="&locale.dir;"-------------------
please note that the words "utton ID" are exactly as the error message gives it; and at the end of the message there are exactly 19 hyphens.
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3. there may have been other errors, but I did not find them.
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Even to write this message I have been forced to use (yuk -- I don't like to say this!!!) Internet Explorer. So please -- I need help urgently.
Thanks,
NOEL

Some how I solved my problem by opening a user account and downloading Firefox 4.0 beta and installing it, I did try it, worked fine, so I did close the user account and did go back to my own account(switched user), the main page that I had problem with Firefox which would not open, I dabble click on Firefox it start working again!! I hope that solves your problem too.
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Like III said, no street view. But now you have turn-by-turn directions so you can see the entire street in real life. :-)
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Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that turns off some settings and disables most add-ons (extensions and themes).
''(If you're using an added theme, switch to the Default theme.)''
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu by clicking on the '''Restart with Add-ons Disabled...''' menu item:<br>
[[Image:FirefoxSafeMode|width=520]]<br><br>
If Firefox is not running, you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' <br>(you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.
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http://support.apple.com/kb/ts1368
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Alex,
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http://kb.mozillazine.org/Uninstalling_toolbars

Since downloaded the last update, Firefox uses 90% of my CPU power slowing my pc to a crawl, why?

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