Description of problem: With new firefox (on wayland), after I switch a tab, the "tab bar" at the top indicates that a switched happened (the new tab is highlighted), but contents of switched-from tab are visible for some time. How long seems to depend on the contents. In some cases the whole contents are replaced, but I have seen cases where rectangles are replaced with the new content. After a few seconds only new contents are shown. This is problematic, because (in the cases where no new content is shown, just the contents of the switched-from tab), it is very easy to be confused, and try to switch tabs further. The partial case, when new contents of the switched-from and swithed-to tabs are mixed, is paradoxically better — it is ugly, but not confusing. Hardware and software: VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07) firefox-69.0-2.fc31.x86_64 kernel-core-5.3.0-0.rc6.git0.1.fc31.x86_64 This certainly didn't happen with firefox-wayland-67, and the older kernel. Not sure who is the culprit.
This also happens with kernel-core-5.2.9-200.fc30.x86_64, and didn't before. So the new firefox version seems relevant. (I'm running on wayland and using firefox-wayland).
I think it's https://bugzilla.mozilla.org/show_bug.cgi?id=1579794
Let's backport that to FF69 at Fedora.
> https://bugzilla.mozilla.org/show_bug.cgi?id=1579794 Yeah, sounds reasonable. Having video in one of the tabs seems to make this much more likely. (But it also happens with other tabs...).
It's https://bugzilla.mozilla.org/show_bug.cgi?id=1580152 and it's actually a different bug. I'll backport it to 69.0-5.
New builds are here - https://koji.fedoraproject.org/koji/taskinfo?taskID=37604373
*** Bug 1751238 has been marked as a duplicate of this bug. ***
*** Bug 1751372 has been marked as a duplicate of this bug. ***
FEDORA-2019-7666428f3c has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-7666428f3c
I revoked the update as the fix seems to be only partial.
(In reply to Martin Stransky from comment #6) > New builds are here - > https://koji.fedoraproject.org/koji/taskinfo?taskID=37604373 Yeah, I can confirm that this fixes the issue, but only partially. It's clearly better though.
The final fix is at https://bugzilla.mozilla.org/show_bug.cgi?id=1580152, I'll back port it to Fedora when it hits mozilla nightly.
We also need to take https://bugzilla.mozilla.org/show_bug.cgi?id=1581748
Should be fixed by firefox-69.0.1-1 and later.
btw. the builds are there - https://koji.fedoraproject.org/koji/buildinfo?buildID=1379884
I'll submit firefox-69.0.1-2 as an update when it finishes.