User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.1) Gecko/20020826 Build Identifier: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.1) Gecko/20020826 Opera haas the ability to toggle between user and author defined styles. At the moment setting userContent.css will apply result in that style being applied to all pages without their own styles. As in Opera it would be good to be able to set a user defined style but also have the ability to turn it off at certain times. This bug is related to comment #2 in bug 132506 - http://bugzilla.mozilla.org/show_bug.cgi?id=132506#c2 Reproducible: Always Steps to Reproduce: 1. set userContent.css 2. point the browser at a web page without a style sheet 3.

This bug is no different than bug 132506. Marking it dup. *** This bug has been marked as a duplicate of 132506 ***

It's not exactly a duplicate, but I'd rather only have one bug on the subject until we've decided what the desired behavior is.

I think this bug should be reopened, as it is very different from bug 132506, and independent of it. We can have a userContent.css editor, we can have an option to enable/disable userContent.css, and we can have both.