Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Firefox responsive, but not working.

myshrinkingviolet
myshrinkingviolet
more options

Hello! I have a weird problem that started yesterday. Firefox was working fine, but one day, it stopped operating as it should. If I type in the address bar, it doesn't go to the page upon hitting enter. If I try to go to settings to reset Firefox, it won't even open settings. The only thing I can do is open the menu. What could be wrong?

I've tried refreshing Firefox, I've tried fully uninstalling, restarting the computer, reinstalling from a clean slate. Nothing seems to be working.

Hello! I have a weird problem that started yesterday. Firefox was working fine, but one day, it stopped operating as it should. If I type in the address bar, it doesn't go to the page upon hitting enter. If I try to go to settings to reset Firefox, it won't even open settings. The only thing I can do is open the menu. What could be wrong? I've tried refreshing Firefox, I've tried fully uninstalling, restarting the computer, reinstalling from a clean slate. Nothing seems to be working.

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Have you seen anything about this file being missing: VCRUNTIME140_1.DLL

When I had the problem of Firefox being pretty much blank from the tab bar down, and completely unusable, I tried reinstalling it. That's when I saw that message.

If your problem with Firefox started after installing or uninstalling some other software, you could download and reinstall the VCRuntime files from Microsoft here:

https://support.microsoft.com/en-us/topic/the-latest-supported-visual-c-downloads-2647da03-1eea-4433-9aff-95f26a218cc0

In the first section of the page, I installed both the 32-bit and the 64-bit, but I don't know if the 32-bit was really necessary. After the required reboot of Windows, Firefox was back to normal.