878610 - GIF favicon animation out of sync with image in ImageDocument

Status: NEW

(Core :: Graphics: ImageLib, defect, P5)

Description

[Justin Dolske [:Dolske]]

Attachment: DEAL WITH IT GIF

This GIF stops animating in the page when the "deal with it" caption is shown.

But, oddly, if you switch to another tab you'll immediately see the favicon start animating again, but upon switching back the image is still frozen at the "deal with it" frame.

I can not deal with it. :(

Comment 1

[Joe Drew (not getting mail)]

This feels exactly like bug 876332 which landed recently (and I can't reproduce this bug in an up-to-date Nightly); please reopen if that's not so!

Comment 2

[Justin Dolske [:Dolske]]

Yeah, it's mostly-fixed in a current Nightly. But I still see two weird things:

1) The favicon animation and the in-content image can be animating massively out-of-sync. Shouldn't all instances of an animation be in sync?

2) Upon switching to (or away! wat) from the tab with the image loaded, the favicon animation resets to the beginning.

Comment 3

[Joe Drew (not getting mail)]

True! But both of those are nothing new, it seems. Do you want to morph this bug into one of them and file another for the other behaviour?

Comment 4

[Justin Dolske [:Dolske]]

I guess that depends on "new", I thought in the past all animations (for a particular file) were synchronized, since there was a single timer driving the animation.

Let's call this bug about #1 from comment 2, and I'll clone this for #2.

Comment 5

[Sylvestre Ledru [:Sylvestre]]

Decreasing the priority as no update for the last 2 years on this bug.
See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage 
about the priority meaning.