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I lost all my OneTab data on Firefox - I have no backups (that I know of)

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  • 1 has this problem
  • Last reply by cor-el

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I discovered that I lost all the sessions from the OneTab extension that I have been using for a while. I am not sure when this happened, because I hadn't opened my OneTab in some time, but today I tried it because I wanted to file and categorize tabs I had saved, and they are sadly all gone!

Searching around I discovered this probably has to do with recent Firefox updates, but I haven't been able to find any backup of my extension data. I followed directions from this issue and this

But no success. Any ideas if/where OneTab data could be? Or even which update could have broken the extension, if that could help?

Thanks so much for any help :)

Edit: I also wanted to add, because I saw it in some of the replies I found, that I have no Old Firefox Data folder, as I have never used the Refresh Firefox option. In fact, I remember getting a notification by Firefox some time ago to do this, but since it would involve having to reconfigure extensions etc, I chose not to (probably a bad idea!).

Modified by starborn05

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See also: /questions/1275126 Restore "one tab" data lost during refresh

Note that OneTab allows to export its data, so make sure to do this.