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Tools/Settings inoperative in Firefox 91 / cannot access the internet at all

bruce.laycraft
bruce.laycraft
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When Firefox updated to version 90 then 91, the Tools/Settings selection doesn't work. I can select "Settings" but nothing happens and I can't change any settings.

I've reinstalled several times to no avail and have had to switch to Brave for the last couple of weeks.

How do I fix this?

Thanks!

P.S. I find I can't access the internet at all now.

When Firefox updated to version 90 then 91, the Tools/Settings selection doesn't work. I can select "Settings" but nothing happens and I can't change any settings. I've reinstalled several times to no avail and have had to switch to Brave for the last couple of weeks. How do I fix this? Thanks! P.S. I find I can't access the internet at all now.

Chosen solution

  1. Enter this link: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads
  2. From the section Visual Studio 2015, 2017 and 2019 download the following executable file: vc_redist.x64.exe
  3. Install this file
  4. Restart the computer and run Firefox
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All Replies (5)

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
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What OS are you using? Did you try safe mode? Firefox safe mode: Click the menu button, click Help and select Restart with Add-ons Disabled…. Firefox will start up with the Firefox Safe Mode dialog.

Have you tried another account on the same computer?

bruce.laycraft
bruce.laycraft Question owner
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Hi jonzn4SUSE,

I'm using Windows 10 (latest version) on a year old Lenovo. I've tried Safe Mode but nothing happened when I did.

I just created another account and tried Firefox again but I can't access the internet with it and I received the same error message as when I first tried to install Firefox in my regular account.

The error message when I first installed Firefox (image added) didn't reappear during re-installations.

I've used Firefox since it was first offered to the public and never had a problem until the latest Windows update.

Thanks, Bruce

Shashank Shekhar
Shashank Shekhar
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Hi bruce.laycraft,

The new in-content about:preferences page has replaced the previously used standalone Options/Preferences window.

You can toggle browser.preferences.inContent to false on the about:config page to restore the standalone Options/Preferences window that you had in previous Firefox versions.

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

TyDraniu
TyDraniu
  • Top 25 Contributor
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Chosen Solution

  1. Enter this link: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads
  2. From the section Visual Studio 2015, 2017 and 2019 download the following executable file: vc_redist.x64.exe
  3. Install this file
  4. Restart the computer and run Firefox
bruce.laycraft
bruce.laycraft Question owner
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Thanks TyDraniu, works perfectly now! I don't know why that file/program was missing on my computer. Bruce