You can automatically save downloads without seeing the Open/Save/Cancel dialog in the Options:

orange Firefox button (or Tools menu) > Options > General > "Saves files to"

However, I can't think of a way to have the Open/Save/Cancel dialog always default to Save. I think mine suggests whatever I did last for the same type of content, but I haven't paid close attention.

I'm out of time to address the problem with "do this automatically" but there is one suggestion for why it could be grayed out in this article: Manage file types and download actions in Firefox.

Is it possible you had a download-related extension before? To compare settings and extensions, please retain the Old Firefox Data folder on your desktop. Aside from checking the extensions in there, it would be interesting to run a text file comparison on your currently active prefs.js file and your old one in that folder.

"You can automatically save downloads without seeing the Open/Save/Cancel dialog in the Options:

orange Firefox button (or Tools menu) > Options > General > "Saves files to"

-It's already set like that. This is where I set the download folder location. The alternative is to always prompt me *where* I want to download my files.

"However, I can't think of a way to have the Open/Save/Cancel dialog always default to Save. I think mine suggests whatever I did last for the same type of content, but I haven't paid close attention. "

-That might be what Firefox used to do for me, but now it defaults on Open constantly no matter what I've selected last time.

"I'm out of time to address the problem with "do this automatically" but there is one suggestion for why it could be grayed out in this article: Change what Firefox does when you click on or download a file. "

-I saw that article before posting. I believe it suggests that the option might be greyed out because of the website I'm downloading the file from incorrectly the filetype. However this is a problem I have been having from every site I have downloaded from - and every site worked fine before my reset.

"Is it possible you had a download-related extension before?"

-I don't believe so. I can't see anything in the Old Firefox Data that looks like it.

"Aside from checking the extensions in there, it would be interesting to run a text file comparison on your currently active prefs.js file and your old one in that folder. "

-There's definitely a lot more listed in my old prefs.js file, but I don't know what I should particularly look for.

Thanks for helping, though!

Could you try copying your old mimeTypes.rdf file (the one in the Old Firefox Data) folder into your new profile folder? You can open your new profile folder quickly using:

Help > Troubleshooting Information > "Show Folder" button

Regarding the prefs.js comparison, I'd look for old preferences with either of these words in the name: download or helperApps.

Hmm...the following entries I found in my old prefs.js file but not in my new one with the word 'download' in its name:

user_pref("browser.download.manager.alertOnEXEOpen", false);
user_pref("extensions.dwpSwitcher.remoteScriptBaseURL", "http://download.divx.com/hiQ/scripts/");
user_pref("extensions.fnvfox.general.downloads.downloadsFolder", "C:\\Documents and Settings\\Owner\\My Documents\\Downloads");
user_pref("extensions.video.downloader.plugin@ffpimp.com.install-event-fired", true);
user_pref("print.print_downloadfonts", false);
user_pref("privacy.cpd.downloads", false);

I didn't see anything which said helperApps.

I'll try copying over the mimeTypes.rdf file and see if it makes a difference.

Yup, the old mimeTypes.rdf file seems to have worked. The prompt now defaults on "save file" and the checkbox for "do this automatically for files like this from now on" is clickable once more. Seems weird that a reset of Firefox would do something like that, but at least it works again for me. Thanks!

It appears something went wrong in regenerating the default mimeTypes.rdf file. First time I've heard of that, but without a lot of experimentation, I'm not sure we could get to the bottom of it.

I have just the opposite problem, how do I get Firefox to notify me when downloads are complete, show me where they are and offer me a chance to run them? It used to do it, now I often forget I downloaded something because it does it in the background and I have to go chase down the "download" folder which I can hardly ever find.

Hi timlturner, if you are running Firefox 20 or later, there should be a green downloads arrow on the toolbar that lists your recent downloads. This article has more information: Where to find and manage downloaded files in Firefox.

Oh cool, right in front of me... there just so much to see.  :-)

This was the solution I needed. Did a reset and when downloading RAR files the "do this automatically" was greyed out. Had a hard time even finding the current profile but your answer saved the day. Thanks.