Created attachment 8841591 [details] Screencast showing the issue [Affected versions]: - Firefox 51.0.1 - Firefox 52 beta 9 - latest Aurora 53.0a2 - latest Nightly 54.0a1 [Affected platforms]: - Mac OS X 10.11 - Windows 10 x64 - Ubuntu 16.04 x32 [Steps to reproduce]: 1. Visit demopage https://bug1312103.bmoattachments.org/attachment.cgi?id=8837541 2. Right click on the icosahedron (geometrical figure with 20 faces) and select inspect element 3. From the Rules panel, hover over 'transform' value. [Expected result]: - overlay that shows the original element without transformation is visible on the page no matter where the cursor position is on the transform value. [Actual result]: - overlay is not always shown if mouse cursor is positioned on (x deg) values. - when the overlay is displayed, it's stuck on the page. (moving the cursor on other elements inside Inspector will make it go away) [Regression range]: - This is not a recent regression, it's a regression from 2016-05-09: m-c: Last good revision: fd8bdef8ef752875c509141b3345ab9e722d6cec First bad revision: 748b70bcdbc95a4f3e72ca53a23c8f766049d011 Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=fd8bdef8ef752875c5 09141b3345ab9e722d6cec&tochange=748b70bcdbc95a4f3e72ca53a23c8f766049d011 m-i: Last good revision: 3740695ca00976b5ce2e21424adab26cf19954d8 First bad revision: 730147bfebe3d2c7d3fe1d0848189a8cb0cc8927 Pushlog: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=3740695ca00976b5ce2e21424adab26cf19954d8&tochange=730147bfebe3d2c7d3fe1d0848189a8cb0cc8927 [Additional notes]: - Attached is a screencast showing the issue.
Too late for 51 and we've built 52 RC. Mark 51 won't fix.
status-firefox51: affected → wontfix
Sounds like an issue of devtools, but I have no idea why adding new color syntax could break that.
Component: CSS Parsing and Computation → Developer Tools: CSS Rules Inspector
Product: Core → Firefox
Inspector bug triage (filter on CLIMBING SHOES).
Priority: -- → P3
Mass wontfix for bugs affecting firefox 52.
status-firefox52: affected → wontfix
Dropping this from regression triage since the dev tools team is aware of the issue and has set a priority.
status-firefox53: affected → wontfix
status-firefox54: affected → fix-optional
status-firefox55: --- → fix-optional
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