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Firefox won't launch and I can't get into Profile manager to make a new profile.

  • 1 reply
  • 7 have this problem
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  • Last reply by cor-el

BigbearAU
BigbearAU
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Whenever I try to launch Firefox it doesn't open. i've had this problem before and I fixed it using the profile manager, I'm trying to do the same thing this time. However the Profile Manager won't open at all.

Whenever I try to launch Firefox it doesn't open. i've had this problem before and I fixed it using the profile manager, I'm trying to do the same thing this time. However the Profile Manager won't open at all.

Chosen solution

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

See also:

You can use one of these to start Firefox in Safe Mode:

  • On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
  • On Mac, hold down the Options key while starting Firefox
  • Help > Restart with Add-ons Disabled
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All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Chosen Solution

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

See also:

You can use one of these to start Firefox in Safe Mode:

  • On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
  • On Mac, hold down the Options key while starting Firefox
  • Help > Restart with Add-ons Disabled