You mean, Apple didn't quadruple the strength of your eyesight? ;-)

There is a tracking bug in the system for Retina support (or more broadly, high-DPI support). Recent activity toward the bottom suggests that it is getting renewed attention this past week, but I don't know whether you can expect it in Firefox 14, which already is in beta; Firefox 15 might be optimistic, too.

Bug 674373 – [10.7] Support HiDPI mode on OS X Lion -- please only comment if you can contribute to a solution; adding "me too" comments which get sent to all the developers on the bug can cause people to drop off and stop working on it.

I found a solution:

http://hitoriblog.com/?p=9023

I know, its in japanese, but with the descriptive images you can arrive to install the fix correctly.

I have it already and its perfect.

Download the latest nightly build and set layers.acceleration.disabled to true in about:config

Wonderful!

Worked perfectly.

Thanks a lot

Just as an update for other people with this issue, hopefully it will be live to all users with Firefox 17. A patch is in the works and will land ASAP.

Will this patch also apply to Thunderbird? Any idea on the timing? Thanks.

This no longer works on Nightly build 2012-08-14 :(

You can download the 2012-08-13 build, where HiDPI mode still works with layer acceleration disabled here:

http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/2012-08-13-03-05-32-mozilla-central/

Some things are finnicky in this build, of course -- the Add-Ons page doesn't open reliably for me, for instance.

The latest nightly build works just fine!

but gomanski's solutions works just fine !

@pame_stoixima I just updated to the latest build and changed the layers.acceleration.disabled attribute on about:config and it's not working for me, any additional configuration that needs to be changed?

the layers.acceleration.disabled workaround only works when the firefox application is marked as 'high resolution capable'. Here are the steps to do that, tested on Firefox 15.0.1 on MacOS 10.8.1:

• Close Firefox
• Open Finder -> applications and Right click/command click on the Firefox application icon, choose 'View package information' (or something similar, I don't have an english version here)
• Open the file Contents/Info.plist file in an editor
• Add the following right before the last </dict>:

<key>NSHighResolutionCapable</key> <true/>

The <true/> bit should be on the next line, directly beneath the NSHighResolutionCapable line.

• Save and close the file.
• In order for the Finder to catch this change, move the Firefox application icon to the desktop and back. Note that you have to *move* the file, not copying or creating a shortcut.
• Start Firefox

While this workaround will give you smooth font rendering, page scrolling becomes noticeably slower. Probably because all/most hardware acceleration is disabled. I hope the actual fix will be released soon.

Thanks everyone for their replies and work arounds, but I would like the original question answered; When will Mozilla officially support Retina displayed Macbooks on a released version of Firefox?

Firefox will fully support Retina Displays in Firefox 18, planned for release just around the first of the new year.

Cant wait, for now i will stop using firefox and will be back when they have the retina display, thank's.

I'm using Firefox's Nightly build which includes the Retina support with acceleration. Scrolling is uber smooth now, more so than Chrome and Safari.