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FYI: Microsoft update for Windows 7 KB2670838 (date 2/28/2013) kills Firefox

  • 1 cavab
  • 19 have this problem
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  • Last reply by user633449

izaakb
izaakb
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Spent the entire morning troubleshooting this.

KB2670838 prevents FF from starting except in safe mode.

I downgraded from 19.0 to 18.0, same problem.

Went thru my entire system, reinstalled FF, nothing. The only difference in my system this AM was the MS update above. I removed it, rebooted and FF worked fine.

Spent the entire morning troubleshooting this. KB2670838 prevents FF from starting except in safe mode. I downgraded from 19.0 to 18.0, same problem. Went thru my entire system, reinstalled FF, nothing. The only difference in my system this AM was the MS update above. I removed it, rebooted and FF worked fine.

Modified by izaakb

All Replies (1)

user633449
user633449
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You can install that update and use Firefox if you Disable Hardware Acceleration in Firefox Turning off hardware acceleration