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Firefox won't open, error message"can't find file at jar:file" etc.

  • 4 respostas
  • 2 have this problem
  • 14 views
  • Last reply by Tuttouomo

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"Firefox cannot find file@jar:file:///program files/Mozilla Firefox/omni jar!/browser config. properties." I tried to download firefox and refreshed the desktop link and still no go. Cannot get firefox to browse.

"Firefox cannot find file@jar:file:///program files/Mozilla Firefox/omni jar!/browser config. properties." I tried to download firefox and refreshed the desktop link and still no go. Cannot get firefox to browse.

Chosen solution

Se also:


Create a new profile as a test to check if your current profile is causing the problems.

See "Basic Troubleshooting: Make a new profile":

There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.

If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.

See:

Ler a resposta no contexto 👍 0

All Replies (4)

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That issue can be caused by an extension that isn't working properly.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

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cor-el, thanks for the help. I did as you said and firefox still won't open. In safe mode the appearance tab was alresdy set to default. Bill

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Chosen Solution

Se also:


Create a new profile as a test to check if your current profile is causing the problems.

See "Basic Troubleshooting: Make a new profile":

There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.

If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.

See:

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cor-el, thank you the new profile worked! I'll try to xfer preferences now. Bill