(1694699) extensions conflict: loss of tabs with Want My RSS and Simple Tab Groups added to Firefox 86.0

[grahamperrin]

Spun off from https://github.com/Drive4ik/simple-tab-groups/issues/779#issuecomment-782650906

If a group with more than one tab is opened into a new window whilst Want My RSS is enabled:

• tabs that are not loaded are lost when the window closes.

https://user-images.githubusercontent.com/192271/108603653-1be73c00-73a1-11eb-9329-a4c25151ed62.mp4

[grahamperrin]

Regression in Firefox

▶ Mozilla bug 1694699 - Investigate tabs API regression in Firefox 86

I'll leave this issue #40 open until it's known whether developers of extensions can do anything to mitigate the regression.

[grahamperrin]

For your consideration, from today's https://bugzilla.mozilla.org/show_bug.cgi?id=1694699#c29:

…Extensions in the second group can request the tabs permission to not trigger this bug. …

In any case: Firefox 87 is fixed, so if any other user of 86.⋯ does encounter the bug, it should be not too long to wait.

[grahamperrin]

Fixed in Firefox 86.0.1:

https://www.mozilla.org/en-US/firefox/86.0.1/releasenotes/#note-788600