When you visit:

http://www.mozilla.org/en-US/plugincheck/

What does the test tell you about the plug-in that handles this functionality? Is it up to date if it is visible in the list?

Adobe reports their plug-in no longer works. But you can print from a web page in Firefox to your Adobe PDF printer instead until they fix their problem.

Firefox Support -- It is vital that you keep up with MSIE's ability to convert and append on the fly webpages to PDF's with active weblinks. The Adobe PDF printer and nearly all other PDF printers cannot do this. Those few that do, do it much less thoroughly or effectively.

You do not want to give users reasons NOT to use Firefox. You have now slipped behind Google Chrome. You still possess advantages -- particularly important add-ons like Acrobat PDF maker and the remarkable (and so far unique) Outwit plug-in that converts table data to Excel or CSV spreadsheets. Your constant version churning has done major damage to many of my plugins, but especially these. I have been forced to revert to version 6.02 to maintain the Acrobat plugin. I have to fend off your version 8.0.2 nag screens, because I know the plugin does not work with that version. If Acrobat and Outwit decide to support another browser (both are considering Safari), I will make the move away from Firefox. Surely that is not what you want to see happen...

Firefox Support - I even create a Firefox account just to agree with kirk@lords.com. I appreciate the word "Thank you for being awesome!" when I registered the account and I certainly do hope you all guys being awesome to. Please do something with all this Firefox update - add-on plugin no longer support thingy. Firefox still awesome, it's just that I can't do much wit it anymore like I used to do. Ohh yayy theres Safari..