This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

This thread was archived. Please ask a new question if you need help.

Tabs are increasingly often not loading

  • 2 replies
  • 1 has this problem
  • 6 views
  • Last reply by FredMcD

E.Rarny
E.Rarny
more options

Whenever opening a new tab, Firefox only shows a blank window. Reloading doesn't help (more accurately, reloading doesn't happen when you try to activate it). This happens everywhere, also on this very website.

Frequency is increasing. It started a few days ago with one tab in 5-10 showing a blank, to 3 or 4 attempts required to open any page.

I've uninstalled Chrome last month because it would always run a single processor core at max capacity, even when Chrome wasn't opened. If you don't fix this, I might end up with with Edge or something. Which stinks, but less than Firefox at this point.

Whenever opening a new tab, Firefox only shows a blank window. Reloading doesn't help (more accurately, reloading doesn't happen when you try to activate it). This happens everywhere, also on this very website. Frequency is increasing. It started a few days ago with one tab in 5-10 showing a blank, to 3 or 4 attempts required to open any page. I've uninstalled Chrome last month because it would always run a single processor core at max capacity, even when Chrome wasn't opened. If you don't fix this, I might end up with with Edge or something. Which stinks, but less than Firefox at this point.
Attached screenshots

All Replies (2)

Terry
Terry
more options

Could the problem be caused by an extension? https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

If you can't find an answer any other way, you could test Troubleshoot Mode. https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

These articles may also help: https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors https://support.mozilla.org/en-US/kb/switching-chrome-firefox

I had the problem recently with a few pages only. A Greasemonkey script was the problem.

EDIT: That reminded me. You can check with Web Developer tools: https://support.mozilla.org/en-US/questions/1349234#answer-1440233

Modified by Terry

FredMcD
FredMcD
more options

You can check for issues caused by a corrupted or incomplete Visual C++ installation that is missing runtime components (Redistributable Packages) required by Firefox, especially VCRUNTIME140_1.dll.

Install both 32-bit and 64-bit "Visual Studio 2015, 2017 and 2019" downloads, (x86: vc_redist.x86.exe and x64: vc_redist.x64.exe) from https://support.microsoft.com/help/2977003/the-latest-supported-visual-c-downloads