Firefox crashes computer only on hlwm

[Hund]

On 7 February 2022 18:41:13 CET, famubu at rawtext.club wrote:
>Hi. I had been experiencing something strange over the past few weeks.
>
>If I got firefox running, after some time the computer will get totally
>stuck. Sometimes it happens within 5 minutes and sometimes it takes
>around 30 minutes, but it *always* happens while on hlwm.
>
>Tried updating firefox version (now at 96.0 on Ubuntu 18.04) and
>clearing cache, cookie, etc but to no avail.
>
>Interestingly, if am I am on xfce, this problem never shows up. I tried
>switching to xfce and have been on it for the past 4 days with firefox
>running, but there were no problems.
>
>It seems that the problem happens only with hlwm.
>
>Is it just me or have anyone had had some similar problem before?
>
>Does anyone has any idea as to the reason behind this anomaly?

Wild guess here: Could it be that you're using a compositor with Xfce and not with Herbstluftwm? Perhaps it's some EGL issues?

--
Hund