Responsive Design Mode broken in Firefox 52

[slarmet]

This is an example of a site which used to work and is now broken

http://demo.favthemes.com/favourite


Put it into any phone portrait mode and notice how the CSS animated 'FavGlyph' icon row module below the image slider fails to run the animations or load anything other than the first icon. The lower 'FavEffects' module - with the images - is also broken.


The site is broken in a clean profile with no add-ons and works fine in Chrome's dev view.

Tested on FF52 Win7-32, FF52 macOS 10.12.3

I'd submit this as a bug on bugzilla, but that's a nightmare procedure.

[edit it looks like I have got the multi-process version of RDV in FF52 and it is this version that is broken]

[Happy112]

Hi slarmet !
I found this thread on the mozilla support forum :
https://support.mozilla.org/t5/Firefox/ ... -p/1381220
Does this look familiar and could this possibly be helpful to you in any way ?
Just in case you would like to file a bug report : https://bugzilla.mozilla.org/