We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

UserChrome.css not working in Developer Edition multi-process

  • 1 reply
  • 1 has this problem
  • 5 views
  • Last reply by jibe06

jibe06
jibe06
more options

Hello,

I have a userChrome.css file that is the same across all my profiles (under /chrome folder). It is not working for Firefox Developer Edition when multi-process is activated (user profile dev-edition-default as seen in about:support). When disabling multi-process, it is working perfectly, but it is using the default profile. (but I want to have multi-process obvisouly ;) ) Again, the userChrome file is the same for both profiles.

Thanks, JB

Hello, I have a userChrome.css file that is the same across all my profiles (under /chrome folder). It is not working for Firefox Developer Edition when multi-process is activated (user profile dev-edition-default as seen in about:support). When disabling multi-process, it is working perfectly, but it is using the default profile. (but I want to have multi-process obvisouly ;) ) Again, the userChrome file is the same for both profiles. Thanks, JB

All Replies (1)

jibe06
jibe06 Question owner
more options

I'll answer myself :)

The userChrome.css file is taken into account. However, it seems some of the browser DOM/chrome is different when using multi-process (ex: tabs and the behavior around class ".tabbrowser-tab"). So my rules where not working anymore.