It worked perfectly. 👍

It's just a shame that people have to go to the trouble of creating and using extensions to overcome a basic defect and terrible and user-unfriendly design choice in Firefox that still hasn't been fixed after all these years. 🤦

Brilliant. Saves that useless mouse click.

The author took privacy into account, as once you disable it it clears out any data the extension logged to add the file extension type. Great for adding file types on sites you frequent a lot to avoid annoying save dialogs, but there's nothing it can do if multiple sites all classify the same extension in multiple ways. Thems the breaks.

OMG! It works! I was so sick of constantly having to go through multiple clicks to download a rar file. The Do this automatically... box was always greyed out. This fixed it! And now the rar file type shows up in Firefox's list of 'Applications' for easy management n case I ever wanted the old behavior back. Thanks so much!! :)

Oh my gosh it works. I always end up going back to Chrome after a few weeks with Firefox because I view a LOT of PDFs for my job and you always have to click seventeen things to get them to open properly. This extension completely fixed it and I could not be happier.

Very nice add-on! I created and installed a desktop java application called xyzapp.exe, and associated it in the OS with custom file extension .xyzapp. I used Content-Type Fixer to define content type application/x-xyzapp, and used the Firefox options to configure Firefox to open (rather than download) .xyzapp files with my xyzapp application. However, they get automatically downloaded anyways. If I tell Firefox to open .xyzapp files with any other app (e.g. Notepad), it works fine. Is this a content-type issue, or does Firefox not permit the launch of privately-developed apps?

How do I make it open a torrent with utorrent? I don't understand how to enter the application properly in the settings. I tried writing application/x-utorrent or application/utorrent, or application/x-µtorrent but it doesn't do anything... help! I still gave this a positive rating because this is a big problem in firefox and I want to see it supported! But it's not working for me, or I don't understand how to get it to work.

Excellent extension !

Worked to change SWFs from playing to octet streams for download

Can force PDFs to open in a tab even if the server is suggesting to download!

very COOL ! I had to switch my useragent on-the-fly to ff66 and back, to be able to write this with waterfox but it was worth it! this addon is doing a real nice trick, for demo see: https://support.mozilla.org/en-US/questions/1247067

click on a .pls link and have VLC launched without further ado!
Comes in SUPER HANDY! well done!

This extension is exactly what I need for fixing some broken PDF download links on a vendor's website. Is there anyway to have this extension become enabled by default when launching Firefox, instead of requiring me to click the icon with each new session?

i thought i'd be able to i.e. run a file with the assciated win. program,/start exe from browser
EDIT: thanx for your reply. yeah its about executable files. there used to be an extension called "download dialog tweaker" where u could tell ff to run/open those. i miss that.