The fox has been falling lately. What about you?

Question

linux

Usually one tab falls, but sometimes it crashes the browser (this is most likely due to the fact that I have only 2 threads configured).
Sites can be different, I didn’t notice any pattern,
it could be YouTube or just a forum with a minimum of media content.
I tried to roll back 1-2 versions back - it did not help (I have an ESR version)
Safe mode does not solve crashes either.
Chromium and PaleMoon are stable.
ps
Linux axis, 5<15 open tabs (no more)
disk cache is disabled, i.e. everything is cached in RAM (6GB
tried esr versions 78.4, 78.5, 78.6, 78.6.1 (now standing)
problems started / began to notice no more than a month ago,
which means it should work with versions 78.4, 78.5,
BUT does not work, i.e. it works, but it also sometimes crashes :(
PS
on the advice of xotkot , I fished out errors when the tab fell

firefox &>firefox.log

[Child 102306, MediaDecoderStateMachine #1] WARNING: Decoder=7f1a4c356800 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr<MediaSourceTrackDemuxer::SamplesPromise> mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /builds/worker/checkouts/gecko/dom/media/MediaDecoderStateMachine.cpp, line 3470
[Child 118082, MediaDecoderStateMachine #5] WARNING: Decoder=7f29c7237000 state=DECODING_METADATA Decode metadata failed, shutting down decoder: file /builds/worker/checkouts/gecko/dom/media/MediaDecoderStateMachine.cpp, line 376

PPS
Updated to 78.7.0esr - a couple of days without crashes :)

Answer 1

78FF ESR portable build from Firefox.78.3.0.ESR.x64.LibPortablePlus. Win7x64 Ent, java and flash are installed on the system. The only site where it sometimes crashes is Aliexpress, when you flip through a page with a product where there are a lot of pictures in the description, and that is far from always the case. I didn’t notice in other places, I keep more than 300 tabs open sometimes. Very happy with this build, would recommend.