1301682 - Broad rules in UserContent.css break CSS rules panel in inspector

Status: RESOLVED DUPLICATE of bug 1291321

(DevTools :: Inspector: Rules, defect)

Description

[lebrun]

Attachment: rulesfail.jpg

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0
Build ID: 20160908004007

Steps to reproduce:

Add a rule for any element without adding @-moz-document domain/url/etc(). E.g.: body {
	font-family: "Times New Roman", Time, serif;
}


Actual results:

Upon restart the style should be applied to the element.
When inspecting, the original rules + UserContent should appear in the CSS rules panel.


Expected results:

The style is applied upon restart.
The CSS rules panel is completely blank for the element and its children.

Comment 1

[Julian Descottes [:jdescottes]]

I think this is a duplicate of Bug 1291321 (fixed in Firefox 51).