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.

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

Drop down menus have not been working in FireFox. The items in drop down menus flicker and I can't select what I want from the list. Is this a known issue?

  • 3 replies
  • 26 have this problem
  • 1 view
  • Last reply by cor-el

more options

I am on version 20.0.1. I am logged into internal systems like our ZenDesk back end and our systems admin console www.americommerce.com/store/admin. Anything that has a drop down will not allow me or makes it very difficult to select a drop down option. It flickers and the mouse over jumps back and forth between selections.

I am on version 20.0.1. I am logged into internal systems like our ZenDesk back end and our systems admin console www.americommerce.com/store/admin. Anything that has a drop down will not allow me or makes it very difficult to select a drop down option. It flickers and the mouse over jumps back and forth between selections.

All Replies (3)

more options

Reload the webpage while bypassing the cache using one of the following steps:

  • Hold down the Shift key and click the Reload button with a left click.

OR

  • Press Ctrl + F5 or Ctrl + Shift + R (Windows and Linux)
  • Press Command + Shift + R (Mac)

Let us know if this solves the issues you are having.

more options

Hello,

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.

Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

Thank you.

more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.

Try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"