I thought it was curious behavior, as it seems to resolve upon reboot. I'm guessing it's a typical Firefox thing with the typical fix. Make sure you have selected Firefox as your default browser both in Firefox preferences and in LL Settings> default applications. I believe it's caused by the firewall (GUFW) not recognizing Firefox after Firefox updates. That is why it works again after a reboot. Sometimes Firefox updates without expecting reboots, (without informing you that a reboot is necessary) the way it normally does after kernel updates. Perhaps this reboot notification needs to be added to the LL updater for Firefox updates.
Also this version of Firefox is capable of updating to recognize new versions of web code, adding as needed. Perhaps those on the fly changes are effecting firewall recognition of the browser as well.
TC
Also this version of Firefox is capable of updating to recognize new versions of web code, adding as needed. Perhaps those on the fly changes are effecting firewall recognition of the browser as well.
TC
All opinions expressed and all advice given by Trinidad Cruz on this forum are his responsibility alone and do not necessarily reflect the views or methods of the developers of Linux Lite. He is a citizen of the United States where it is acceptable to occasionally be uninformed and inept as long as you pay your taxes.