uBO, HTTPZ, and Tampermonkey (plus a host of small utilities like "Don't F**k With Paste") on my main FF profile, and AdGuard and Violentmonkey on my secondary FF profile, which I use to check for site breakage or performance issues. I may switch from Tampermonkey to Violentmonkey on my main profile soon, because some members here and at Wilders have expressed privacy concerns about Tampermonkey.
On Slimjet, I use the built-in ad blocker and Tampermonkey, but I may also switch that to Violentmonkey if I'm satisfied with it. I previously had problems importing scripts into Violentmonkey, but those issues seem to be resolved now.
On Edge legacy, my only extension is AdGuard. I almost never use Edge.