
Almost immediately after the older version starts up, it will likely automatically update to the newest version! As soon as you start up the older version, you have to go to Edit > Preferences > Advanced button > Update tab.Īnd uncheck the "automatically download newest version" box. I don't see why it wouldn't work for 14.04. So I'm getting ready to try this with 14.04. Now that I've upgraded my Ubuntu to 14.04, Firefox 31.0 is dragging like crazy.very slow and unresponsive. Check here to confirm the code for your preferred lnaguage.Here are some clear instructions for downgrading to an older version of Firefox in Ubuntu 12.04.

After navigating into the platform directory open the directory corresponding to the language you want Firefox to use e.g for US English the correct directory is /en-US/, for British English /en-GB/ and for Canadian English /en-CA/.For versions without EME (Encyrpted Media Extensions i.e DRM) use the directories with EME-free appended to their name.For Mac versions use the directory: …/#version-no#/mac/.


For Windows 64-bit (圆4) versions use the directory: …/#version-no#/win64/.Directories for specific platforms (replace version-no# with the Firefox version number you want):.Directories for the Beta versions have the letter b appended at the end of their names followed by beta number e.g 89.0b1/.Directories for the ESR versions have the letters esr appended at the end of their names e.g 78.0esr/.
