Migrate Firefox repository to use Git

[meichthys]

Using git would likely increase the number of community contributions since most developers know git.

Having to learn Mercurial is a barrier to entry (although not insurmountable, is enough to put off new potential contributors).

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[simon]

The git cinnabar integration seems to work really well for me. Did you have any specific issues?

[Anonymous]

python3 bootstrap.py --vcs=git

OP, you might want to take another look here:

 https://firefox-source-docs.mozilla.org/setup/linux_build.html

Hope this info helps.

[meichthys]

Thanks @simon. I'll take a look. There seems to be limitations, but it should be enough to get me started👍