[Bug 1979891] Re: Firefox becomes unusable when adjusting window size

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On 2022-09-13T03:01:49+00:00 Christopher Beland wrote:

Created attachment 9294363
about:support.json

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:104.0) Gecko/20100101
Firefox/104.0

Steps to reproduce:

Upgraded to snap version of Firefox on Ubuntu, used browser normally.


Actual results:

After a while, scroll bars stop sliding smoothly. I can click on the
slider, hold, and move to the desired part of the page, but while doing
that there is no animation showing what I'm doing. Hovering over a
hyperlink no longer causes the URL to show up at the bottom of the
screen. Then when I adjust window size, sometimes the window fails to
render inside its boundaries properly. In particular, if I unplug my
external monitor (which is in portrait orientation and connected to my
laptop via a USB-C port that's converted to HDMI) this forces Firefox
windows to redraw on my built-in monitor (which is in landscape
orientation) and I immediately experience problems with windows not
rendering in their boundaries properly. When a window is in this
maladjusted state, the contents don't fill the window, not all the
controls are visible, and clicks are offset, so if I click on one spot,
the window behaves as if I clicked on a different spot (so it's
impossible to use Firefox in that window anymore).

Not all windows are broken, so I can fix this problem for a given window
by moving all its tabs to a new window, one by one. Restarting Firefox
cures this problem for all windows.


Expected results:

No rendering problems.

FTR, originally reported here, and I was asked to re-report to
mozilla.org:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1979891

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1979891/comments/8

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On 2022-09-13T03:31:52+00:00 Release-mgmt-account-bot wrote:

The [Bugbug](https://github.com/mozilla/bugbug/) bot thinks this bug
should belong to the 'Core::Widget: Gtk' component, and is moving the
bug to that component. Please correct in case you think the bot is
wrong.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1979891/comments/10


** Changed in: firefox
       Status: Unknown => New

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Title:
  Firefox becomes unusable when adjusting window size

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