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I use Firefox with Video Background Play Fix. It worked properly on my old phone, but doesn't work on my current phone. Playing unexpectedly stops sometimes, usually when I launch another app, but sometimes in my pocket.

I tried to add to about:config (in firefox nigtly) browser.tabs.unloadOnLowMemory = false . There is no such option in current version. I tried to add manually, but it didn't help.

Hello! I’m a bit concerned because firefox has been functioning perfectly fine up to last week, when it started not crashing, but losing the opened sessions. I had many tabs that I would go back to after closing firefox. And then suddenly, when I opened it, there were no tabs at all. This happened again yesterday. And today again. I cannot find the option “restore previous session” like on the computer, so I go to history and manually restore the lost tabs, and of course it isn’t possible to remember everything, so lots are being lost. Could you help me? Many thanks!