This is in Linux Mint 18, Fx 52.3.7 esr.
I'm posting this for others benefit, if some standard fixes don't work.
I'll cut to the chase. Once upon a...oops, sorry, Rock -… (funda kabanzi)
This is in Linux Mint 18, Fx 52.3.7 esr.
I'm posting this for others benefit, if some standard fixes don't work.
I'll cut to the chase. Once upon a...oops, sorry, Rock - wrong hat. One day links opened from external apps stopped opening in tabs in the current window as they had done for eons. I read numerous articles & posts on sites, including https://support.mozilla.org/en-US/questions/1193456 various fixes, which worked for some.
In mine, external links started opening a new window, using a different, old profile, but used the current Fx version.
Changing the 3 about:config prefs mentioned in the linked post above, that control link opening behavior wasn't my problem or a solution. Also, disabled TabMix Plus, that has tab opening settings. Nada.
Even though I've used one profile almost exclusively since Jan. 2018, external links recently started opening in an old profile & new window. At first I thought it might be a desktop file issue, as some paths in old Fx launchers commands no longer existed. Cleaning out the defunct ones was a good idea but no solution.
I discovered the same old profile was always called by links in external applications. That lead to finding the old profile was back to the default profile in the profile manager. I edited the profiles.ini file (usually in the root "firefox" folder containing the profiles) & made the new profile the default. No change in link opening.
(you can access profile manager even if firefox is running, using the command: firefox -P -no-remote
Don't monkey around with anything unless you know what you're doing or get help.
The old profile being set as default probably shouldn't have made external links open in a "new window" even if the profile in use wasn't the "default", because the Fx version in use said it WAS the default browser.
It wasn't the whole problem. The 3 about:config prefs are about links opening in same or new window, not, "open a different profile for external links only." That may be a bug or coded behavior that KB articles I've seen don't discuss.
The new Fx version & new profile still showed "Firefox is currently your default browser," and "Always check if Firefox is your default browser" was checked, as it had been. It said that, but wasn't respecting it.
I thought I'd outsmart the external apps & move the old profile. That just made them mad & complained that "the profile (or files?) you're trying to access (the old profile) can't be located," so links from external apps wouldn't open.
I checked Preferences > General tab again after hiding the old profile and now it said, "Firefox is NOT your default browser, moron." Little harsh. Somehow, as long as the old profile was accessible, even after the corrections - that I've done many times over years, external links were hell bent on using the old profile, long after it WASN'T the default.