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Update to Firefox 64.0 not working

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Hi, the Update to Firefox 64.0 on Linux doesn't work. Firefox doesn't start anymore, nothing works. So I downloaded the full release but same result..nothing work, Firefox doesn't start

Hi, the Update to Firefox 64.0 on Linux doesn't work. Firefox doesn't start anymore, nothing works. So I downloaded the full release but same result..nothing work, Firefox doesn't start
FredMcD
  • Top 10 Contributor
4220 solutions 58899 answers

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}

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 '''[https://support.mozilla.org/en-US/kb/configure-firewalls-so-firefox-can-access-internet Configure firewalls so that Firefox can access the Internet.]''' {web link}

Question owner

sorry I think you missed something...I'm under Linux not windows...

sorry I think you missed something...I'm under Linux not windows...
FredMcD
  • Top 10 Contributor
4220 solutions 58899 answers

Are you using a firewall? Did you get your Firefox from Mozilla or elsewhere?

Are you using a firewall? Did you get your Firefox from Mozilla or elsewhere?

Question owner

no firewall Firefox from Mozilla. All previous updates worked fine until this one 64.0 How to find/download previous version 63 ?

no firewall Firefox from Mozilla. All previous updates worked fine until this one 64.0 How to find/download previous version 63 ?
FredMcD
  • Top 10 Contributor
4220 solutions 58899 answers

I called for more help. Please wait for a response.

Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements

I called for more help. Please wait for a response. [https://support.mozilla.org/en-US/kb/install-older-version-of-firefox?cache=no Install Older Version Of Firefox] {web link} Be sure to read everything here. If you still want to downgrade, look under; '''I still want to downgrade. ''' Click the '''Directory of other versions and languages''' link. Look for the directory of the version that you want. But, remember that '''old versions may have security issues. ''' You should also check out [https://www.mozilla.org/en-US/firefox/organizations/ Firefox; Extended Support Release] {web link} [https://www.mozilla.org/en-US/firefox/organizations/notes/ ESR Notes] [https://www.mozilla.org/en-US/firefox/organizations/system-requirements/ System Requirements]
cor-el
  • Top 10 Contributor
  • Moderator
17407 solutions 157253 answers

Verify that you meet the System Requirements (GTK+ and GLib) for the current Firefox release.


On Linux you would have to use a terminal window or modify a desktop shortcut (launch) with the -safe-mode switch added to the command line.

Try to create a new profile to test if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

Verify that you meet the System Requirements (GTK+ and GLib) for the current Firefox release. *https://www.mozilla.org/en-US/firefox/system-requirements/ *https://www.mozilla.org/en-US/firefox/64.0/system-requirements/ ---- On Linux you would have to use a terminal window or modify a desktop shortcut (launch) with the -safe-mode switch added to the command line. *https://developer.mozilla.org/en-US/Command_Line_Options *https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Try to create a new profile to test if your current profile is causing the problem. See "Creating a profile": *https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles *http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems. *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
cor-el
  • Top 10 Contributor
  • Moderator
17407 solutions 157253 answers

Se also:

Se also: *[/questions/1243501] Weird Nightly update made my Profile unusable