Just make sure to use the -no-remote switch (command line argument) for your second instance at least, or for both if you are not sure which one you’ll start first (or the one without it will just launch as another instance of the one launched with -no-remote if that was the first).Īlso make sure to use separate profiles, of course. Some people even run 3 or more instances/versions simultaneously, e.g. Yes, it’s still possible as outlined in the other question. I created another shortcut ''"C:\Program Files\Mozilla Firefox\Firefox.exe"'' -P Regular (Firefox 2) I created a custom shortcut ''"C:\Program Files (x86)\Mozilla Firefox\Firefox.exe" -P Plex -no-remote'' and named it plex and changed the icon to the one from the plex executable. '''''(Go here and click on the "Firefox for other platforms & Languages" to get the full offline installer package)'''''ĩ. Well ) The info from the 3 year old post is still valid.
Read this answer in context ? 12 All Replies (11) Now I have Firefox 32bit v54.0.1 (set to never update) for running my media front end and Firefox 64bit v55 (That I will keep updates current on) for accessing the internet and can run both at the same time. I then stated the 2nd instance of Firefox (Firefox 1) with the shortcut from #9 and told it not to be the default browser and not to check this setting on start up.
I started Firefox 2 with the second shortcut from #10 and set it to the default browser.ġ2. I created another shortcut "C:\Program Files\Mozilla Firefox\Firefox.exe" -P Regular (Firefox 2)ġ1. I created a custom shortcut "C:\Program Files (x86)\Mozilla Firefox\Firefox.exe" -P Plex -no-remote and named it plex and changed the icon to the one from the plex executable.
I moved everything from the "Core" folder I extracted from the archive into the new "mozilla Firefox" folder.ĩ. I created a new folder in "program files" (not program files (x86)) and named it Mozilla Firefox.Ĩ. (Go here and click on the "Firefox for other platforms & Languages" to get the full offline installer package)ħ. I downloaded "Firefox Setup 55.0.exe" and manually extracted the "Core" folder with Winrar. I closed firefox 1 and manually copied everything from the "Plex" profile folder into the "Regular" profile folder. I started Firefox 1 with the new profile "Regular".ĥ. I created a new profile named "Regular".Ĥ. I renamed the current profile to "Plex".ģ. Opened Firefox 1 with the -profilemanager command line switchĢ. It's all terminal commands so I assume if it's not going to work on 14.04, a bad command error will let me/you know.Well ) The info from the 3 year old post is still valid. I tried again and just moved faster on it and got the box unchecked before it could start the upgrade and it worked.
If you don't get to it fast enough, I couldn't figure out how to interupt the download and installation.
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. Here are some clear instructions for downgrading to an older version of Firefox in Ubuntu 12.04.