Hi gamblodar, what happens when you call up the Email Link feature? You can find that in the following places: * In the address bar, ••• > Email Link... * On the classic menu bar, File > Email Link... If you haven't locked Firefox in to a particular email program or site, it should offer the option to use known email programs/sites, and a button at the bottom to choose a different application on your system. If you need to change this feature back to letting you choose an email program/site, go to the section of the Options page described in the following article and select "Always Ask": [[Change the program used to open email links]] Next, can your program handle the input? Firefox will send it something like: mailto:?subject=blah&body=blah This hasn't changed for years, so presumably the vendor can advise you on compatibility.