I dual-boot Windows 10 and Lubuntu 16.04.3 on one machine. I use Firefox on both OSs. For a long time, I had them both using the same Firefox profile. In Windows, I left the profile in the default location. In Linux, I'd run Firefox with the -profile switch, and point it to the profile. This worked well for a very long time. All configs and extensions, and all profile data, everything worked perfectly in both.
However, since one of the recent major version updates, this doesn't work anymore. This doesn't work since FF 54 or 55, don't remember which. It works halfway only, as follows.
From Linux, everything is fine. But then when I go back to Windows, the profile is botched, but only somewhat. All custom configs are still retained. But I lose all extensions. The about:addons page shows no extensions installed.
This does not happen the other way around. After loading the profile in Windows, then booting into Linux, the profile is fine. Everything is ok.
So, to summarize: After loading the profile in Linux, it's messed up in Windows.
Anyone know what I can do to get it working seamlessly again? Or have definitive info that this cannot work anymore in current versions?
Hope it's clear.