Being able to have common profiles for my Mozilla products across operating systems on my main computer has been a dream for a few years now.
I tried this a few years ago between Slackware and my then secondary OS, Debian (stable). The way I had it set up then worked well until the day that Debian dropped FF and TB from their repos and started using their own IceCritters. Another problem I had back then was that Debian’s Mozilla apps were usually quite a bit older versions than the ones in Slackware. If the versions get too disparate, as they eventually did between Slack and Debian, the common profiles no longer function properly.
Later on, when I adopted Arch Linux as my secondary OS, I tried to run common profiles again. I had forgotten my lesson about needing similar versions of the Mozilla apps for the common profiles to work. Arch is much faster at getting newest versions into their repos than Slackware, so once again I had this version disparity issue. Since Mozilla’s recent change to the update-as-often-as-you-change-underwear schedule, I’ve learned to blacklist Mozila apps in Arch so they don’t get updated. Once Slackware puts out an update (I manualy download and install from current) for the Mozilla applications (Firefox, Thunderbird, Seamonkey), I allow the Arch update to go through.
Now that I have my Slack and Arch Moz versions the same or very similar, the common profiles should work. Below is a look at how I did it on my system. It will, of course, be different on yours, but the principles are about the same.
First, I used a common partition on a separate internal hard drive for my common profiles directory.
This partition automounts within my /home/<user> directory at boot up. You could theoretically use a thumb drive for this, if you wanted to. You’d just have to make sure that it automounts with the proper permissions at boot time.
Next, I copied the firefox and seamonkey directories from my Slackware (main OS) /home/vtel57/.mozilla directory into my newly created /home/vtel57/vtel57_common/common_mozilla directory. I also copied the contents of the .thunderbird directory into a directory called thunderbird also in /home/vtel5/vtel57_common/common_mozilla. You can perform these operations from the command line or in your GUI file manager app, as you prefer.
Now, in the /home/vtel57/.mozilla directory, I renamed the old firefox and seamonkey profiles to inoperative. The old profiles had some random <number/letter>.default as their name. I just added “inop” to the end of that to deactivate them. I did the same with the /home/vtel57/.thunderbird profile. This will prevent the apps from trying to use these old versions.
vtel57_Slackware~/.mozilla/firefox:$ mv 3mvew7qq.default 3mvew7qq.default_inop
Back in the new common directory shown above, I renamed the <number/letter>.default profiles to names that made more sense to me: ff_profile.default, tb_profile.default, and sm_profile.default.
Once I did all of the above, I needed to edit the profile.ini in each original application directory (/home/vtel57/.mozilla/firebird and seamonkey, /home/vtel57/.thunderbird) to point to the newly created common profiles. You can open your favorite gui or command line editor and make these changes to each profile.ini file. Here is my profile.ini for Firefox, for example:
*change the items in red to the ones in green
So now, whenever I fire up firefox, seamonkey, or thunderbird in either Slackware or Arch, they will be running off the same profiles; meaning all data, preferences, etc. are synch’d. Ain’t it great!?
I’m sure there are easier ways to do this, but this is how I managed it. You can experiment to find what works best for you on your systems.