Does anyone recognise this #FirefoxNightly #extension pls?

/home/MsDropbear/.mozilla/firefox/Nightly/storage/default/moz-extension+++a121e9d2-2d1b-4093-978f-399d7c9f4fcf 🤷‍♀️

Atm i cannot identify it via searX, nor in either my `about:support` nor `about:debugging#/runtime/this-firefox` internal pages. It seems kinda sorta important to understand it, coz atm it's using 570 MB!

It's also present in my #FirefoxBeta & ordinary #Firefox browsers, but in each tis MUCH smaller [otoh, my daily default IS #FirefoxNightly].

#MozExtension