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Thunderbird stealing web browser preference. [Linux.]

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jelabarre59
 
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Post Posted October 24th, 2017, 6:13 am

OK, I thought this was just a bug in Cinnamon desktop, but now I've seen it with Mate as well.

I am finding that on occasion Thunderbird is getting set as the "default" application for web browsing. Normally I would be using Firefox-ESR as my preferred browser, but then I'll find I can't open links, and that will be because Thunderbird will inexplicably be set as my web browser (Preferred Applications setting in both Cinnamon and Mate desktops, LinuxMint 18.2). I'll set it back, and it actually stays correct for a day or two (maybe more if I put my system to sleep rather than shut down and restart). As I said, I thought it might have been something in Cinnamon (quirk happens on two separate machines), but now I saw it on another machine running Mate desktop (the only common factor would be both are derivatives of Gnome some years back).
Last edited by LIMPET235 on October 24th, 2017, 6:16 am, edited 1 time in total.
Reason: Added [Linux] to the title.

LIMPET235
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Post Posted October 24th, 2017, 6:17 am

Moving to Thunderbird Support...
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tanstaafl
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Post Posted October 24th, 2017, 11:21 am

Are you using a Mozilla build or a third party build provided by your Linux distro? If the latter, it might be a bug in the third party build. Ubuntu's Thunderbird build has a history of adding patches that Mozilla didn't consider ready yet for production use, and making minor changes to where stuff is stored. Perhaps LinuxMint is doing the same thing (or inherited it from Ubuntu).

jelabarre59
 
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Post Posted November 23rd, 2017, 7:46 pm

This is with the standard Thunderbird included with LinuxMint/Ubuntu. It did it again today in fact. Seems if Firefox is running, Thunderbird will steal the setting

tanstaafl
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Post Posted November 26th, 2017, 2:54 pm

I don't know whats causing it, especially since its not repeatable upon demand. See if setting the browser used by Thunderbird per http://kb.mozillazine.org/Changing_the_ ... hunderbird and then setting the system default browser per http://kb.mozillazine.org/Default_browser helps.

jelabarre59
 
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Joined: July 23rd, 2012, 10:31 am

Post Posted December 5th, 2017, 12:59 pm

I've swithed my default browser to Waterfox, and encountered the same issue today. Still haven't nailed down the exact sequence to make it switch.

jelabarre59
 
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Post Posted January 20th, 2020, 4:38 pm

This seemed to have gone away, but now it's back with a vengeance. I'll have TBird (68.2.2) and Waterfox (2020.01) running, and I will have been able to open links within an email just fine. Then abruptly, without having closed Waterfox or Thunderbird, even within a couple of minutes of it having worked, I won't be able to open a URL from Thunderbird, and will find TBird will have stolen the web browser preference.

tanstaafl
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Post Posted January 20th, 2020, 6:53 pm

It sounds like something external to both applications is the culprit. If you believe its a bug in Thunderbird I suggest you switch to version 60.9.1 for a while and see if the problem goes away. See http://kb.mozillazine.org/Go_back_to_an ... hunderbird for where to get the generic linux setup program for Thunderbird 60.9.1. If your profile was created by version 68.* you might need to add a --allow-downgrade command line argument to allow version 60.9.1 to use it. Or use the profile manager to create a new profile and copy&paste the contents of the old profile into it.

You will probably have more luck getting advice in a Linux Mate forum. My first thought would be to find out how to do some sort of automated logging of when these settings change.

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