Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

userchrome.css changes not working in Firefox 78.2.0esr release

  • 1 ŋuɖoɖo
  • 1 masɔmasɔ sia le esi
  • 2 views
  • Nuɖoɖo mlɔetɔ cor-el

more options

Hi All -

I have been using Firefox for a while now. I have customizations using userchrome.css file. But after recent upgrade of my Firefox to Firefox 78.2.0esr few of the userchrome.css changes are not working. Especially changes to do with the URL dropdown box for customizing background color for bookmarks.

Attached is userchrome.css file from my side.

I already have legal style flag enabled from about:config. But still the issue happens.

Can somebody help me fix this issue?

thanks!

Hi All - I have been using Firefox for a while now. I have customizations using userchrome.css file. But after recent upgrade of my Firefox to Firefox 78.2.0esr few of the userchrome.css changes are not working. Especially changes to do with the URL dropdown box for customizing background color for bookmarks. Attached is userchrome.css file from my side. I already have legal style flag enabled from about:config. But still the issue happens. Can somebody help me fix this issue? thanks!

All Replies (1)

more options
  1. PopupAutoCompleteRichResult is no longer used and has been replaced by #urlbar-results.

So you will have to look for replacement code or use the Browser Toolbox.

See also this subredit website: