1689958 - PiP window changes size and position each time it's initiated

Status: RESOLVED DUPLICATE of bug 1755706

(Core :: Widget: Gtk, defect)

Description

[tgn-ff]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:87.0) Gecko/20100101 Firefox/87.0

Steps to reproduce:

1. Start PiP
2. Move the window to the upper left corner.
3. Stop/start PiP repeatedly.

In case it is important, I use the KWin window manager.

Actual results:

The window gets smaller and moves towards the bottom right corner after every time you start/stop PiP.

Expected results:

Bisection points to Bug 1683075.

https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=a7f58bb3f814d4cb528da96afc78b68467c61290&tochange=3511277c894242df40937e5569035cf4aa7fe0a2

Comment 1

[tgn-ff]

At step 2, put the window near the upper left corner, don't let it snap to it, otherwise it won't move.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1683075

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The bug has a release status flag that shows some version of Firefox is affected, thus it will be considered confirmed.

Comment 4

[gwarser]

This might be fixed already. Does not happen to me anymore in Manjaro.

Comment 5

[tgn-ff]

Yes, it was fixed in Bug 1755706. I'll mark it as duplicate.

Although ESR v.91 is still affected, creating a KWin rule to set the initial size/position of the PiP window, is an effective workaround.