Some applications don't follow default browser settings

Tianyu Chen

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Oct 4, 2022, 12:30:06 AM10/4/22

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Hi all,

I'm using Google Chrome (/opt/google/chrome/google-chrome) as my default
browser, which is set by `update-alternatives` command. However my
firefox-esr is always launching when links are opened in Telegram and
Mozilla Thunderbird.

I'd like to know why firefox-esr is launching, and how can i switch to
Chrome? I'm not gonna removing my Firefox :(

Some information attached:

    $ readlink -f /usr/bin/x-www-browser
    /opt/google/chrome/google-chrome

    $ xdg-settings get default-web-browser
    google-chrome.desktop

    $ cat ~/.config/mimeapps.list
    [Default Applications]
    x-scheme-handler/tg=userapp-Telegram Desktop-ZS5OS1.desktop
    text/html=google-chrome.desktop

    [Added Associations]
    x-scheme-handler/tg=userapp-Telegram Desktop-ZS5OS1.desktop;
    text/html=google-chrome.desktop;

Any help is appreciated, thanks!

Tianyu Chen

John Conover

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Oct 4, 2022, 1:00:05 AM10/4/22

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Tianyu Chen writes:
>
> I'm using Google Chrome (/opt/google/chrome/google-chrome) as my default
> browser, which is set by `update-alternatives` command. However my
> firefox-esr is always launching when links are opened in Telegram and
> Mozilla Thunderbird.
>
> I'd like to know why firefox-esr is launching, and how can i switch to
> Chrome? I'm not gonna removing my Firefox :(
>

Setting the default programs is kind of a mess, and there are two
methods, which must agree, else conflicts occur:

update-alternatives --set gnome-www-browser /usr/bin/google-chrome-stable
update-alternatives --set x-www-browser /usr/bin/google-chrome-stable
xdg-settings set default-web-browser google-chrome.desktop
xdg-settings set default-url-scheme-handler mailto thunderbird.desktop

The names of your programs may be different, be sure to check the executable
names for google-chrome and thunderbird.

Also, if you are using XFCE:

Applications->Settings->Default Applications

has to agree with the above settings, too.

John

--

John Conover, con...@panix.com, http://www.johncon.com/

Max Nikulin

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Oct 4, 2022, 1:00:06 AM10/4/22

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On 04/10/2022 11:07, Tianyu Chen wrote:
>
> I'm using Google Chrome (/opt/google/chrome/google-chrome) as my default
> browser, which is set by `update-alternatives` command. However my
> firefox-esr is always launching when links are opened in Telegram and
> Mozilla Thunderbird.

Almost certainly Thunderbird ignores alternatives, mailcap and queries
XDG settings from mimeapps.list, mimeinfo.cache files

> $ xdg-settings get default-web-browser
> google-chrome.desktop

xdg-mime query default x-scheme-handler/http
xdg-mime query default x-scheme-handler/https

or
xdg-settings get default-url-scheme-handler http
that likely invokes xdg-mime

>     $ cat ~/.config/mimeapps.list
>     [Default Applications]
>     x-scheme-handler/tg=userapp-Telegram Desktop-ZS5OS1.desktop
>     text/html=google-chrome.desktop

My guess is that when applications are going to open a link, MIME type
is not known yet, so scheme handler is queried. Likely you miss the
following associations in the [Default Applications] section:

x-scheme-handler/http=google-chrome.desktop;
x-scheme-handler/https=google-chrome.desktop;

Do not forget to run update-desktop-database with a proper directory as
its argument.

Tianyu Chen

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Oct 4, 2022, 1:30:08 PM10/4/22

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在 2022年10月4日星期二 UTC+8 13:00:06，MaxNikulin写道：

>x-scheme-handler/http=google-chrome.desktop;
>x-scheme-handler/https=google-chrome.desktop;
>
>Do not forget to run update-desktop-database with a proper directory as
>its argument.

Thanks! Changing the x-scheme-handler to google-chrome.desktop works for me!
Tianyu Chen