exactly what I needed. Used regex on my 17000 big DB, modifying 500 entries. Works OK.

What a life-saver!

I used it to replace a Nitter's instance by another one in 88 bookmarks, it is fast and reliable. Thank you!

Works for me, tried both RegExp and Domain Name modes. Just what I needed, thanks!

Worked as expected!

works really well so far.

As a suggestion, it would be nice if it stored used pattern somehow.

Works perfectly, thanks.