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Re:Mercurial developer responds to "Switch to git?" by sampo on Monday November 18, 2013 @02:07AM (#6753038)
> which extensions to install

I don't think you need to install those extensions, you just enable them by putting a line in .hgrc

Re:Mercurial developer responds to "Switch to git?" by mrtngslr on Monday November 18, 2013 @12:34PM (#6755546)
Mercurial ships with 30+ standard extensions and you simply enable them as needed. More experienced users can download and then install third-party extensions as they like.

This of them as major modes for Emacs, if you're familiar with that. Emacs comes with syntax highlighting support for a lot of languages and the mode is turned on automatically. Sometimes you need to install a new major mode yourself, but the bundled modes get you a long way.