Closed Bug 1795315 Opened 1 year ago Closed 1 year ago

Flickering of bookmarks folder's contents with many bookmarks leading to the interface freezing in Firefox Nightly 107.0a1 (2022-10-14) on Wayland


(Firefox :: Theme, defect)

Firefox 107





(Reporter: matt.fagnani, Unassigned)




User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:107.0) Gecko/20100101 Firefox/107.0

Steps to reproduce:

I started Firefox Nightly 107.0a1 (2022-10-14) on Wayland with WebRender compositing in Plasma 5.25.5 in a Fedora 37 KDE Plasma installation. I had previously enabled the menu bar. I clicked on Bookmarks in the menu bar. I moved the cursor over a bookmarks folder with about 30 bookmarks.

Actual results:

The contents of the bookmarks folder sometimes flickered. The bookmarks folder didn't show the down arrow like a V at its bottom which allowed scrolling down as was present in previous 107.0a1 builds. Firefox's interface sometimes became unresponsive for a while after the flickering problem occurred.

This problem didn't happen with 107.0a1 (2022-10-13) on Wayland and earlier. I ran mozregression --good 2022-10-13 --bad 2022-10-14 -p ~/.mozilla/firefox/z8d4nvrc.default-nightly --profile-persistence reuse

The bisection finished with the following first bad revision.
fb32775d2defaa2fe7d6e270aefc31d80b3f729a Emilio Cobos Álvarez — Bug 1790616 - Use modern flexbox for the toolbox.

6:20.68 INFO: Narrowed integration regression window from [6387a6e7, fb32775d] (3 builds) to [48c266f6, fb32775d] (2 builds) (~1 steps left)
6:20.68 INFO: No more integration revisions, bisection finished.
6:20.68 INFO: Last good revision: 48c266f64c004b63ce578243d3e5a82c9540e308
6:20.68 INFO: First bad revision: fb32775d2defaa2fe7d6e270aefc31d80b3f729a
6:20.68 INFO: Pushlog:

Bookmarks folders with fewer bookmarks which don't usually show the down arrow don't show this problem.

Expected results:

The bookmarks folder's contents would be shown normally with the down arrow allowing scrolling down through the bookmarks. Firefox would remain responsive.

Component: Untriaged → Theme
Regressed by: 1790616

This is basically bug 1795294.

Closed: 1 year ago
Resolution: --- → DUPLICATE
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