Since my computer upgraded to the latest version of Firefox, I can't access or access only partial websites - how do I fix?

My computer did it's normal Window update as well as updated to the latest version of FireFox. Since then I can access minimum parts of normal websites and I cannot use multiple tabs to search different websites. I restored my computer to before the Windows 7 update thinking that was the problem but I still have trouble accessing sites and extreme slowness with FireFox. Any ideas?

* 
Many site issues can be caused by corrupt cookies or cache. 
Clear the Cache 
'''''Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"'''''
 and 
Remove Cookies '''''Firefox/Tools > Options > Privacy.''''' 
Under '''History''', select Firefox will '''Use Custom Settings'''. 
There is a button on the right side called '''Show Cookies'''. 
If there is still a problem,
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]'''''
 While you are in safe mode; '''''Firefox Options > Advanced > General'''''. 
Look for and turn off '''Use Hardware Acceleration'''. 
Poke around safe web sites and see if there is still a problem. Then restart.
 
* 
I found that after Firefox v29, a LOT of my settings and 
add-ons were changed / reset. Try this; 
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]'''''
 While you are in safe mode; 
'''''Firefox Options > Advanced > General'''''. 
Look for and turn off '''Use Hardware Acceleration'''. 
Then check ALL of your settings. Browser and add-ons. Then restart.

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Frustrated Firefox user ;(,
Jonathan Cohen
edit: removed personal information for your protection. please note that we cannot offer support via telephone, so please continue in the forum. thanks for your understanding! (philipp)

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''andy_blunden [[#question-1057157|said]]''
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Try this:
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*http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/

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You may see that message below the Google search box on www.google.com/firefox which is the old Firefox default home page. It appears that page is no longer being maintained by Google. You appear to have the latest Firefox version.
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*See --> http://support.mozilla.com/en-US/kb/How+to+set+the+home+page
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'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''
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*http://www.mozilla.org/firefox/17.0.1/system-requirements/
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Again:
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Hello,
Certain Firefox problems can be solved by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
More information about reinstalling Firefox can be found [https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems?esab=a&s=troubleshooting&r=3&as=s#w_5-reinstall-firefox here].
WARNING: Do not run Firefox's uninstaller or use a third party remover as part of this process, because that could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be recovered unless they have been backed up to an external device!
Please report back to see if this helped you!
Thank you.

Since my computer upgraded to the latest version of Firefox, I can't access or access only partial websites - how do I fix?

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