No.

"Mozilla signs fresh Google search deal worth mega-millions"

Moz will likely pocket $400m to $450m a year between now and 2023 from the arrangement, citing internal discussions held earlier this year.

https://www.theregister.com/2020/08/14/mozilla_google_search...

https://news.ycombinator.com/item?id=24156813

Yes. That doesn't mean that money will go to Firefox.

As far as I can tell they canned most of the Firefox teams driving new features, so that’s how I read the situation.

It’s interesting how those teams have finally been able to pull Firefox out of freefall, only to be sacked.

They dropped some side teams, but the deal with Google that we thought wasn't happening actually happened a bit later. They're still good. They had future regardless, it's not the end of the world for them to run a bit more lean.

If that was the case I‘d fall back to Safari. Even though my browsing experience wouldn’t be the same anymore (using a dozen addons in Firefox).

I believe the upcoming version of Safari will have WebExtension support, so at least there's that.