System Handler

Jim VE7ROX · 12-17-2023, 05:23 PM

I am using Lubuntu 22.04 Jammy Jellyfish. When I click on to a link, it goes to a box that says "Allow xxx to open the dmanager link with System Handler?" instead of going to the desired web page, like it used to do. When I click "Open Link" in this box, nothing happens, and the System Handler does not work. Is there any way I can make this go away, or delete System Handler, and go back to the way it was?

frankbell · 12-17-2023, 08:40 PM

I have not encountered anything like this.

It might help to know which browser you are using?

Does it have any add-ons? If so, you might try turning them all off and seeing whether the problem goes away. If so, then turn them back on one at a time to identify the culprit.

You might also try starting the browser from the command line and visiting a site. When it calls this "system handler," it might throw a helpful message to the terminal.

lvm_ · 12-18-2023, 01:22 AM

If you are using firefox you can redefine helper applications in browser setting under Applications, but if it is chromium - bummer, google decided you don't need it. This 'system handler' however could be a canonical wrapper for xdg-open, if so changing default system mime settings via xdg-mime or by editing mimetype would help.

beachboy2 · 12-18-2023, 02:30 AM

Jim VE7ROX,

Explanation here for Firefox:
https://www.reddit.com/r/gnome/comme...r_feature_now/

Extract:

Quote:

System handler exists because of sandboxing. With the old method where you select in Firefox which app to open the file with, Firefox has to know which apps are installed on the system and which file types they can open, and it also has to be able to run those apps. But if Firefox is sandboxed, it doesn't know which other apps are installed and it can't open them directly either.

Jim VE7ROX · 12-18-2023, 01:57 PM

Thanks so much for the replies. I am using the default web browser for Lubuntu, which is Firefox. I will check Firefox Settings, and do some more investigating. I have another computer using Kubuntu 23.10, and compare the two. I will post more on here if I find something out. Again, thank you.