I shouldn't blame Iceweasel, because when I used to use Firefox it did the same thing. And they are not the only apps that annoy me with this "feature."
What is this annoyance? I am on a web page and there is a link for Contact Us. I know little of html, but I think the code behind the link is "mailto." If I click on it a window pops up on the desktop inviting me to configure Evolution. Well, Evolution is not configured and never will be configured. I use Sylpheed for my mail reader. I am very happy with Sylpheed and have no intention of changing. So I went into Preferences > Applications in Iceweasel and noted that for mailto only Yahoo mail and Gmail were listed. I don't want to use either of them; I want it to launch a Compose Message window in Sylpheed. So I deleted them. Now when I click on the Contact Us link in the web page Iceweasel pops up a little box that says "This link needs to be opened with an application: Send to:" -- and then I can click on a button to choose the application. And there is the annoyance. When I click on the button I get a Nautilus browser window. Like I know where the Sylpheed executable file is located or what it is called. And you MUST use this browser window to select the application. You can't just type the name of the application in a box like you can when you edit your Applications menu. If I right-click on any other file on my computer I get an "Open with" dialog box where I can choose from a list of installed applications. Why can't Iceweasel present me with something like that? Grrrr. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org