This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox 19 incompatible with latest Windows update

  • 2 replies
  • 12 have this problem
  • 3 views
  • Last reply by Catffs

Catffs
Catffs
more options

Running Firefox 19 and Vista/Windows 7.

My computer got one of those "critical Windows updates" and installed automatically. Afterwards it would not run Firefox. Firefox did not crash--it simply never started running in the first place. The most information I could get was that Firefox was now incompatible. Malwarebytes was able to connect to the internet, but not my browser. I did a system restore to before the update and it all works for now, but that's only a temporary fix.

Any ideas would be welcome.

Running Firefox 19 and Vista/Windows 7. My computer got one of those "critical Windows updates" and installed automatically. Afterwards it would not run Firefox. Firefox did not crash--it simply never started running in the first place. The most information I could get was that Firefox was now incompatible. Malwarebytes was able to connect to the internet, but not my browser. I did a system restore to before the update and it all works for now, but that's only a temporary fix. Any ideas would be welcome.

Chosen solution

hello Catffs, please start firefox in safemode (by pressing the shift-key while it is launching) & go to firefox > options > advanced > general & disable hardware acceleration.

for some background on that issue you can also refer to bug #812683

Read this answer in context 👍 7

All Replies (2)

philipp
philipp
  • Moderator
more options

Chosen Solution

hello Catffs, please start firefox in safemode (by pressing the shift-key while it is launching) & go to firefox > options > advanced > general & disable hardware acceleration.

for some background on that issue you can also refer to bug #812683

Catffs
Catffs Question owner
more options

Thanks very much!!