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

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

Add-on Causes Firefox Malfunction that I Cannot Fix

  • 2 uphendule
  • 1 inale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu cor-el

KittiBluStout
KittiBluStout
more options

I had seen Omnibar, and despite the reviews, I thought it would be a good thing for me, so I can merge the Search Bar and the Address Bar, like in Chrome.

I thought it would work with my Firefox, even though I have Classic Theme Restorer, and now, when I try to go to Customize, it just won't load at all!

Now, whenever I try to right click at the top of the browser, and click on Customize, the Customize tab won't even open, even AFTER removing and uninstalling Omnibar.

If it even DOES open, it won't load. It's just a white screen.

Can someone help?

I had seen Omnibar, and despite the reviews, I thought it would be a good thing for me, so I can merge the Search Bar and the Address Bar, like in Chrome. I thought it would work with my Firefox, even though I have Classic Theme Restorer, and now, when I try to go to Customize, it just won't load at all! Now, whenever I try to right click at the top of the browser, and click on Customize, the Customize tab won't even open, even AFTER removing and uninstalling Omnibar. If it even DOES open, it won't load. It's just a white screen. Can someone help?

All Replies (2)

the-edmeister
the-edmeister
  • Moderator
more options

Create a new Profile. https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Try to reset the browser.uiCustomization.state pref on the about:config page.

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.

You can also check for problems caused by a corrupted localstore.rdf file.

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