1453432 - Discarding a tab clears its favicon

Status: RESOLVED DUPLICATE of bug 1450382

(WebExtensions :: Frontend, defect, P3)

Description

[Mark Striemer [:mstriemer]]

When you discard a tab with browser.tabs.discard() then its favicon is removed from the tab strip. It would look better if the favicon was maintained so its easier to find the tab again later.

Comment 1

[Shane Caraveo (:mixedpuppy)]

Using Discard Tab I am not able to reproduce this.

https://addons.mozilla.org/en-US/firefox/addon/discard-tab/?src=search

Comment 2

[Mark Striemer [:mstriemer]]

Attachment: discard-favicon.mov.gif

It seems to be lost for Bugzilla and Facebook, but not for AMO. I'm not sure what the difference is though.

Comment 3

[Robert AB]

Similar bugs:
Bug 1427822
Bug 1451799

Comment 4

[Michael C. Irvin]

Shane,

As Robert points out, there are a few other reported issues with tabs.discard and favicons.  https://bugzilla.mozilla.org/show_bug.cgi?id=1427822 is one of the main ones and already has 200+ votes which I would think shows a fair amount of impact considering there probably isn't a very large number of people using tabs.discard just yet.

I added a comment to that issue (https://bugzilla.mozilla.org/show_bug.cgi?id=1427822#c1) and was able to reproduce the issue with a clean profile after a few restarts.  Once a tab gets into this state, it doesn't seem to be able to use tabs.discard without losing the favicon. (Screenshot links in the comment) [favicon always loads properly when activating the tab]

I also zipped up that test profile and could provide\attach it if that helps. (8MB)

Sincerely,
Mike