Firefox will not open any tabs

I can open the Firefox program on my Mac desktop running 10.6.8. I can get to prefs. I can see my history. If I try to open a new window nothing happens. If I try to open up a historical site, nothing happens. It has updated the software. Any suggestions? Thanks.

'''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]''' {web link}
While you are in safe mode;
Type '''about:preferences#advanced'''<Enter> in the address bar.
Under '''Advanced,''' Select '''General.'''
Look for and turn off '''Use Hardware Acceleration'''.
Poke around safe web sites. Are there any problems?

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Updated to android 2.3 on my htc evo 4g and now firefox will not open any tabs?

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If you use ZoneAlarm Extreme Security then try to disable Virtualization.
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
See also:
*[[/questions/880050]]

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Your suggestion worked! Thanks!

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I have windows 7 64, and recently, when windows automatically updated, my firefox will not open any new tabs, manually or when opening a link...

Uninstall the Ask toolbar and it should work again. There is a compatibility issue with the Ask toolbar and Firefox that prevents new tabs from being opened.

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Looks like a bunch of people have this problem. Anyone got any ideas to fix this???

Since updating last time Firefox will not open new tabs unless I right click on a link. It won't open them via file or the tab at the top of the brwoser. Anyone know how to fix this?

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Firefox will not open any pdf files

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Hello,
In order to change the default reader for PDF files (to not open PDF files with Firefox's internal PDF reader), follow these steps:
#Click the menu button [[Image:New Fx Menu]] and click Options (Preferences for Linux and Mac).
#In the Options (Preferences for Linux and Mac) window, select the ''Applications'' panel.
#In the ''Search'' field, type ''PDF''. You should find ''Portable Document Format (PDF)''.
#On the right hand side you should find an ''Action'' column. Use that to select your favorite PDF reader. In order to view PDF files in Firefox, choose ''Preview in Firefox''.
Did this fix your problems? Please report back to us!
Thank you.

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Clear Cookies & Cache
* https://support.mozilla.com/en-US/kb/Template:clearCookiesCache
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* https://support.mozilla.com/en-US/kb/How%20to%20clear%20the%20cache#w_clear-the-cache
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Firefox will not open any pages

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Firefox will not open old tabs

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* Using Firefox's Browser Console (formerly known as Error Console): https://support.mozilla.org/questions/969046#answer-471950
* Using Firefox developer tool "Scratchpad": http://forums.mozillazine.org/viewtopic.php?f=38&t=622036&start=60&p=12098147#p12098147
* Using a third party website: https://firefox-session-restore.herokuapp.com/

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* http://kb.mozillazine.org/Browser_will_not_start_up
* http://kb.mozillazine.org/Error_loading_websites

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Hello,
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. 
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Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
Did this fix your problems? Please report back to us!
Thank you.

Firefox will not open any website and I have done what your help section has instructed. after it updated quit working.

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#you must remove Firefox from your firewall's allowed applications list,
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#then give the necessary permissions for your firewall to allow Firefox access to the internet
Click here for more information --> [https://support.mozilla.com/en-US/kb/Cannot%20connect%20after%20upgrading%20Firefox Cannot connect after upgrading Firefox]
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''

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After upgrading, sometimes your firewall will not recognize the new Firefox version and, therefore, not allow it to access the internet. To remedy that situation,
#you must remove Firefox from your firewall's allowed applications list,
#then restart firefox, go to a website, the firewall will detect the new Firefox version and
#then give the necessary permissions for your firewall to allow Firefox access to the internet
Click here for more information --> [https://support.mozilla.com/en-US/kb/Cannot%20connect%20after%20upgrading%20Firefox Cannot connect after upgrading Firefox]
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''

Firefox will not open any tabs

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