Still something I am in need of. Good catch on the age of that one - I was reading the article about it and didn't toggle every tab in the extension page. There are reviews that discuss the problem of the use of information gathered.

WebP / Avif image converter appears to do much the same thing - and also catches the occasional Avif file. This one, if you click to look at the extension pages, allows you to set a download file (default is Downloads). It does claim not to use gathered information.

Only a year since the last update.