Mozilla Firefox – Official GitHub repo

I think it's actually an understandable strategical move from Mozilla. They might loose some income from Google and probably have to cut the staff. But to keep the development of Firefox running they want to involve more people from the community and GitHub is the tool that brings most visibility on the market right now and is known by many developers. So the hurdle getting involved is much lower.

I think you can dislike the general move to a service like GitHub instead of GitLab (or something else). But I think we all benefit from the fact that Firefox's development continues and that we have a competing engine on the market.

In my experience, most contributors who are deterred from contributing because they can't use GitHub aren't particularly valuable contributors. I'm sure there's exceptions, but I haven't seen any for non-trivial open source projects I've been involved in. I might even argue that it could be good to have a slightly higher bar to deter low quality one time contributors.

Contribution isn’t driven by a desire for rewards, but by goodwill. Friction only gets in the way. If the friction is worth it, fine - but what exactly is being lost by moving the repository to GitHub?

The number of emails I get "Your website is vulnerable to clickjacking attacks, PS. how much bounty have I earned?" suggests that there are many for whom a desire for literal rewards is their sole driver.

Not to mention the AI-generated security "issues" that are reported against curl, for example, suggests there can indeed be negative value for reports, and contributions.