metarmask

I was able to enable it on stable by toggling browser.urlbar.showSearchTerms.featureGate

Edit: Nevermind, it doesn’t work for custom engines, which suggests that it’s a separate implementation from mobile?

At first I thought it was something about it being a worst case scenario for compression algorithms, costing bandwidth.

.bibisco2 are really just zip files which PhotoRec can find, if you want to use that. Good luck.

Bibisco2 is a JavaScript app, unlike version 1. It seems .bibisco2 files are only created when exported, otherwise it’s in a database somewhere. You can add custom formats in recovery tools like TestDisk and Photorec. I could look around and see if the database or the bibisco2 export files have a header, which I think is required to add a format.

Edit: Nevermind, there’s a paid version which creates bibisco2 files automatically.

For legal issues that are not EU-specific you may also want to take inspiration from this instance.