Seems to be a bug in Firefox, not specific to Manjaro/Arch, and has already been reported upstream in Mozilla’s Bugzilla:
In another report (now closed as duplicate of 1955112) the descriptions are pretty close to what is mentioned in this thread.
Seems to be a bug in Firefox, not specific to Manjaro/Arch, and has already been reported upstream in Mozilla’s Bugzilla:
In another report (now closed as duplicate of 1955112) the descriptions are pretty close to what is mentioned in this thread.