Unreal Engine breaking Firefox on kernel 5.13

I’m having this Issue where Firefox suddenly starts misbehaving after updating to Kernel 5.13 while having Unreal Engine installed or installing Unreal Engine on a system with the kernel 5.13.
Sites log out when the browser closes, extensions stop working and files like lock .parentlock persist even if erased and if the places.sqlite or start a new profile or the .mozilla folder is removed then the " The bookmarks and history system will not be functional" error appears and persist

When checking error occurs the about:support page becomes empty and the Places Database Integrity check shows the following:

> Task: checkIntegrity
+ The places.sqlite database is sane
+ The favicons.sqlite database is sane
> Task: invalidateCaches
+ The caches have been invalidated
> Task: checkCoherence
+ The database is coherent
> Task: expire
+ Database cleaned up
> Task: originFrecencyStats
+ Recalculated origin frecency stats
> Task: vacuum
+ Initial database size is 10240KiB
+ The database has been vacuumed
+ Final database size is 10240KiB
> Task: stats
+ Places.sqlite size is 10240KiB
+ Favicons.sqlite size is 5120KiB
+ pragma_user_version is 57
+ pragma_page_size is 32768
+ pragma_cache_size is -2048
+ pragma_journal_mode is wal
+ pragma_synchronous is 1
+ History can store a maximum of 144565 unique pages
+ Table moz_origins has 1870 records
+ Table moz_places has 17601 records
+ Table moz_historyvisits has 30833 records
+ Table moz_inputhistory has 1 records
+ Table moz_bookmarks has 1885 records
+ Table moz_bookmarks_deleted has 0 records
+ Table moz_keywords has 2 records
+ Table sqlite_sequence has 1 records
+ Table moz_anno_attributes has 0 records
+ Table moz_annos has 0 records
+ Table moz_items_annos has 0 records
+ Table moz_meta has 7 records
+ Table sqlite_stat1 has 18 records
+ Table moz_places_metadata has 0 records
+ Table moz_places_metadata_search_queries has 0 records
+ Index sqlite_autoindex_moz_origins_1
+ Index sqlite_autoindex_moz_inputhistory_1
+ Index sqlite_autoindex_moz_bookmarks_deleted_1
+ Index sqlite_autoindex_moz_keywords_1
+ Index sqlite_autoindex_moz_anno_attributes_1
+ Index sqlite_autoindex_moz_places_metadata_search_queries_1
+ Index moz_places_url_hashindex
+ Index moz_places_hostindex
+ Index moz_places_visitcount
+ Index moz_places_frecencyindex
+ Index moz_places_lastvisitdateindex
+ Index moz_places_guid_uniqueindex
+ Index moz_places_originidindex
+ Index moz_historyvisits_placedateindex
+ Index moz_historyvisits_fromindex
+ Index moz_historyvisits_dateindex
+ Index moz_bookmarks_itemindex
+ Index moz_bookmarks_parentindex
+ Index moz_bookmarks_itemlastmodifiedindex
+ Index moz_bookmarks_dateaddedindex
+ Index moz_bookmarks_guid_uniqueindex
+ Index moz_keywords_placepostdata_uniqueindex
+ Index moz_annos_placeattributeindex
+ Index moz_items_annos_itemattributeindex
+ Index moz_places_metadata_placecreated_uniqueindex
> Task: _refreshUI

Any idea what could be happening?

Stupid question, but Unreal works fine? If so this is not an Unreal Engine issue. It either is a kernel issue or firefox issue.

Yeah, Unreal works fine. I’ve tried with different versions of Firefox and Librewolf, haven’t tough of the kernel but have no knowledge of to troubleshoot it if that’s the case.
Thanks for the answer