Yes, Retina support was introduced in 18 and is still in 19. Try to Reset Firefox Reset Firefox – easily fix most problems

Retina support was introduced in fx18 but had several issues but should still be supported in fx19.

• Release notes Firefox 18 fx18.0.2 list& fx19
• and a recent thread /questions/946326 about retina

I can not remember whether it was just fx18.0.1 but at sometimes fixes were to turn it off !! because of the problems. Have you checked it is actually on.

• see thread firefox 18.0.1 disabled retina support
• also experiment with Hardware acceleration on or off
  Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems_turn-off-hardware-acceleration

I will have to keep an eye on the me too votes on this thread,if a lot of others have problems I will look at the bugs and see if i can find out anything more over there.

Note the easy option of using Firefox reset will remove your extensions, also alter a few other things,

• read the notes first Reset Firefox – easily fix most problems_what-does-the-reset-feature-do

Modified February 20, 2013 8:04:40 AM PST by John99

Question owner

Tried it, but nothing happened. Google is still fuzzy, for example.

Can you type about:support into the address bar, press Enter, and then copy that information here?

Question owner

Troubleshooting Information

 This page contains technical information that might be useful when you're
 trying to solve a problem. If you are looking for answers to common questions
 about Firefox, check out our support website.

       Application Basics
     

             Name
           

           Firefox
         

             Version
           

           19.0
         

             User Agent
           

           Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:19.0) Gecko/20100101 Firefox/19.0
         

             Profile Folder
           

             Enabled Plugins
           

             about:plugins
           
         

             Build Configuration
           

             about:buildconfig
           
         

             Crash Reports
           

             about:crashes
           
         

             Memory Use
           

             about:memory
           
         

       Extensions
     

             Name
           
           
             Version
           
           
             Enabled
           
           
             ID
           
         
       
       
       
     

       Important Modified Preferences
     

           Name
         

           Value
         
       

       accessibility.typeaheadfind.flashBar0browser.cache.disk.capacity358400browser.cache.disk.smart_size_cached_value358400browser.cache.disk.smart_size.first_runfalsebrowser.cache.disk.smart_size.use_old_maxfalsebrowser.link.open_newwindow2browser.places.smartBookmarksVersion4browser.privatebrowsing.autostarttruebrowser.startup.homepagehttp://www.google.ca/browser.startup.homepage_override.buildID20130215130331browser.startup.homepage_override.mstone19.0browser.tabs.loadInBackgroundfalsebrowser.tabs.warnOnClosefalsedom.mozApps.usedtrueextensions.lastAppVersion19.0font.language.groupx-westerngfx.blacklist.webgl.msaa4layers.acceleration.disabledtruenetwork.cookie.cookieBehavior1network.cookie.lifetimePolicy1network.cookie.prefsMigratedtrueplaces.history.enabledfalseplaces.history.expiration.transient_current_max_pages104858plugin.disable_full_page_plugin_for_typesapplication/pdfprivacy.donottrackheader.enabledtrueprivacy.sanitize.migrateFx3Prefstrue
     

       Graphics
     

       Device ID0x 166GPU Accelerated Windows0/1 Basic Vendor ID0x8086WebGL RendererIntel Inc. -- Intel HD Graphics 4000 OpenGL Engine

       AzureCanvasBackendquartzAzureContentBackendnoneAzureFallbackCanvasBackendnone

       JavaScript
     

             Incremental GC
           

           true
         
       
     

       Accessibility
     

             Activated
           

           false
         
         
           
             Prevent Accessibility
           

           0
         
       
     

       Library Versions
     

       Expected minimum versionVersion in useNSPR4.9.44.9.4NSS3.14.1.0 Basic ECC3.14.1.0 Basic ECCNSSSMIME3.14.1.0 Basic ECC3.14.1.0 Basic ECCNSSSSL3.14.1.0 Basic ECC3.14.1.0 Basic ECCNSSUTIL3.14.1.03.14.1.0

Question owner

Let me know if you prefer screenshots.

Let me do some checking around. Meanwhile, would you mind making sure that Mac is fully up to date, Restarting your computer, Trying with Hardware acceleration disabled, etc.? Turning off hardware acceleration

Question owner

I checked and I installed a Java update for my Mac. Hardware acceleration is turned off...

Can you play with Hardware Acceleration? Is it better with it on? Better with it off? After a restart, etc.?

Reset the page zoom on pages that cause problems.

• View > Zoom > Reset (Ctrl+0 (zero); Cmd+0 on Mac)

• http://kb.mozillazine.org/Zoom_text_of_web_pages

Question owner

I honestly don't see any difference between having Hardware Acceleration on/off. Even after a restart.

Question owner

Hi, have you found a solution?

Try to set the gfx.hidpi.enabled pref to 2

• http://kb.mozillazine.org/about:config

Question owner

Tired that; no dice.

@smuggin

Try this:

on Firefox 19

about:config

___

layers.acceleration.disabled = true

gfx.hidpi.enabled = 2

___

Restart Firefox.

ps: I work with Flash and the only problem is that Flash player is soo soo soooo laggy now. But everything else works perfect.

Question owner

Google is now working. Facebook logo is still grainy, as are some graphics on this help page. Eh, good enough for me.

Chosen Solution

OK, so it looks like Facebook is now in retina-display...I don't know what happened or what fixed it.

But it looks like things are resolved...somehow.

Is there any other fix to make Firefox 19 look better on the MBP Retina?

I tried changing the values in about:config but i didn`t see much differance at all..surely there must be a way to make FF look sharper on the retina display.

I still think it looks very soft and also kind of fuzzy on my Retina display.