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Firefox for windows 10 do not open, tried re installing, clearing cache etc.,

  • 3 replies
  • 1 has this problem
  • 18 views
  • Last reply by FredMcD

Dilip
Dilip
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I had most updated versions of Mozilla Firefox in my windows 10 machine. last two days, it is not opening. Tried several recommendations from Community page, Help documents and youtube solutions but nothing seems to be working.

  • Tried re-installing firefox, by downloading the latest version from Mozilla, after deleting the profile folder (%APPDATA%)
  • Tried removing the cache files / temp files etc., and restarted as well, still did not work.

I do not have admin permission hence could not open in windows safe mode.

Any suggestion please?, Appreciate your input!

I had most updated versions of Mozilla Firefox in my windows 10 machine. last two days, it is not opening. Tried several recommendations from Community page, Help documents and youtube solutions but nothing seems to be working. * Tried re-installing firefox, by downloading the latest version from Mozilla, after deleting the profile folder (%APPDATA%) * Tried removing the cache files / temp files etc., and restarted as well, still did not work. I do not have admin permission hence could not open in windows safe mode. Any suggestion please?, Appreciate your input!

All Replies (3)

FredMcD
FredMcD
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Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}

Dilip
Dilip Question owner
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Thanks for the link Fred,

I followed the configuration steps for Windows 10 Firewall and yet it isn't working. Tried restarting the machine as well.

FredMcD
FredMcD
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Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia