Agreed HiDPI would be nice, but seriously if anyone is interested, do yourself a favor and check out Firefox again.

Firefox Aurora, the bleeding edge http://www.mozilla.org/en-US/firefox/aurora/

Firefox Beta, pretty stable http://www.mozilla.org/en-US/firefox/beta/

Firefox Stable http://www.mozilla.org/en-US/firefox/new/

You might be totally surprised just how fast it is nowadays, quicker than Chrome even, on many scripts. Not only test wise, but the GUI feels much snappier too.

I can never seem to switch between profiles very effectively. I wish there was a way to run firefox in a "trial" mode where it just created a new temporary profile that it got rid of on exit.

I'd like to try out firefox nightly from time to time to see if they've fixed a feature yet or if I should go into the bug tracker. However currently I've managed to accidentally trash my profile a couple times. I made a new profile for nightly, but it then seemed to break firefox beta.. blah blah blah.

It's not very well documented, but at least on Linux you can do this:

    $ tar xf firefox-nightly-whatever.tar.bz2
    $ cd firefox
    $ mkdir /tmp/temporary-profile
    $ ./firefox -no-remote -profile /tmp/temporary-profile

No "profile manager" dialog, no interaction with existing profiles, it just creates a new profile in the directory you specify and starts up.

On OSX: (directory will be autocreated)

  $ /Applications/FirefoxAurora.app/Contents/MacOS/firefox-bin
    -no-remote -profile /tmp/temp-profile

This is assuming you want to use Firefox Aurora, without interfering with your main profile. (Recommended :p)

Most features support HiDPI in the nightly builds since 4 days ago. http://nightly.mozilla.org/ That probably means it will be included in FF 17, in 3 months.

I think it's actually going to be ready for FF 18

Is it really a priority? The vast majority of Firefox users do not own the new MBP.

More of them are being sold every day, and the pace is only set to increase as it's pretty much inevitable that Apple will release more high-resolution devices as time goes on. Might as well get it over with now before Firefox gets labeled as "the ugly one on high-res devices".

Are we ever going to see a high resolution Windows implementation?

Windows 8 will support multiple DPI values, at least for Metro.

This is of course true. But it will ensure every Retina MBP owner is not using Firefox.

This is a priority. The numbers are small today but they're growing and we can expect more HiDPI machines from Apple in the not too far off future.

You can track the progress of HiDPI support here:

https://bugzilla.mozilla.org/show_bug.cgi?id=674373

You can get HiDPI text in Firefox 15 and Beta 16 if you set about:config pref layers.acceleration.disabled=true. This obviously has a performance impact, but it's a temporary workaround that let's me keep using Firefox on my Retina MacBook Pro. Unfortunately, this workaround no longer works in Aurora 17 or Nightly 18. :(