It is not limited to just French dictionaries. All additional dictionaries I had (English (GB), Dutch (NL) and French) are no longer present after the update, just English (US) remains.
Reinstalling the Hunspell libraries did not solve the issue. I do not see the same behaviour with the language packs though, they are still there and have been updated nicely. Search engines do not come back either, only once after the update. Could it be that this happened to you because you manually (re)installed the language pack? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1791789 Title: FF62 upgrade : search engines override, french dictionnary and language pack lost. Status in firefox package in Ubuntu: Confirmed Bug description: Hi, Ubuntu 18.04 here, language system is french FR. When FF upgrades to 62, two problems occur : 1. french dictionnary and french language pack are « lost » in the upgrade. Need to reinstall both. 2. Some search engines come back at each re-launch ( google, amazon ) and search engines list order is also lost at each relaunch. Affects many users : https://forum.ubuntu-fr.org/viewtopic.php?pid=21967917#p21967917 https://forum.ubuntu-fr.org/viewtopic.php?pid=21968315#p21968315 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1791789/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

