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.

A rectangle in the top-left of the browser

crocodeele
crocodeele
more options

I'm trying to make my own userChrome.css, and after doing *{color: ...; background-color: ...;} I have an annoying non-transparent rectangle at the top-left of the browser! How can i remove this, and furthermore, where can i find the names of the browser elements like "tab", "ulr-bar" and "titlebar"? Is there a tool which i can use to find those easily?

Pic of the rectangle https://imgur.com/a/GWeFh

I'm trying to make my own userChrome.css, and after doing *{color: ...; background-color: ...;} I have an annoying non-transparent rectangle at the top-left of the browser! How can i remove this, and furthermore, where can i find the names of the browser elements like "tab", "ulr-bar" and "titlebar"? Is there a tool which i can use to find those easily? Pic of the rectangle https://imgur.com/a/GWeFh

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Generally speaking, you should not use the * selector, since that is meant to apply to every single element and you'll nearly always want to do something more specific.

As there are not a lot of Nightly users here, you might consider starting a thread on this subreddit:

https://www.reddit.com/r/FirefoxCSS/