That are .html links on the mp3skull.com site that you first need to left-click or middle-click to open a web page.
On that web page you see links to play and download the MP3 files (they are all named preview.mp3).

I type in a search for the song I want & get a page that shows lots of the song with Play.Download.Embed.Send Ringtone under title. Previously when I right click on Download a pop up window comes up with options - Save Link As & you can save the file (named preview.mp3) where you want. This is not happening now. When I click on Download the song opens in another window & plays in Quick Time Player. There is nowhere there to do anything. I have just tried this on my laptop & it is the same as it was before on my desktop - works fine. Laptop has an older version of Firefox??? & now I think about it my desktop updated Quick time player recently. Thanks for your reply. Will investigate further.

Does it help if you hold down the Alt key and left click the Download button?

No, nothing happens at all

No, nothing happens at all

Start Firefox in Use Troubleshoot Mode in Firefox to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

• Don't make any changes on the Safe mode start window.
• https://support.mozilla.com/kb/Safe+Mode

• https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

Thank You so much. I disabled all Add Ons & re-enabled them one by one. The Save Link As is back, even though all Add Ons are enabled as before.???? Thank You once again