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.

Quantum causes windows screen flashing (outside of FF window)

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by ddtudoran

markeh
markeh
more options

I recently upgraded (???) to Quantum 64 bit, which I sorely regret. When I open a bunch of tabs FF sometimes causes "flashing" on the bottom half of my monitor. Flashes are across the entire screen (outside of the FF window) and repeat about every 2-3 seconds. I can't seem to find a particular URL/Tab that causes the problem. Once it starts, closing tabs sometimes helps, sometimes doesn't, thought usually if I close all but one the problem stops.

Seems like a pretty big bug to me.


.

I recently upgraded (???) to Quantum 64 bit, which I sorely regret. When I open a bunch of tabs FF sometimes causes "flashing" on the bottom half of my monitor. Flashes are across the entire screen (outside of the FF window) and repeat about every 2-3 seconds. I can't seem to find a particular URL/Tab that causes the problem. Once it starts, closing tabs sometimes helps, sometimes doesn't, thought usually if I close all but one the problem stops. Seems like a pretty big bug to me. .

All Replies (1)

ddtudoran
ddtudoran
more options

Hi markeh,

Hello,

The Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information.

To Refresh Firefox:

  1. Open the Troubleshooting Information page using one of these methods:
    • Click the menu button New Fx Menu, click help Help-29 and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
    • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
  2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
  3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
  4. Click Finish and Firefox will reopen.

Did this fix the problem? Please report back to us!

Thank you.