This is a Firefox issue that needs to be addressed ASAP. apparently, Firefox 4 does not recognize your printer. All that happens when I try to print is that Firefox closes and suggests that I submit a crash report. I have tried EVERYTHING to remedy this to no avail. I have tried using, "about:config", uninstalling and reinstalling Firefox 4, and even changing the preferences manually through Windows. Nothing seems to correct this rather egregious over-site by the Mozilla Team! The only thing that I can recommend is to right-click an open area of the page and select, "Save Page As" and then select, "My Documents" and create a new folder and name it "Firefox Web Page Data". Or save the page to the "Desktop" to create a "desktop shortcut". Make sure you right-click on the desktop icon, and under the "General" tab, select "Change" where it says, "Opens With...". Select, "Internet Explorer". Now, "minimize" Firefox and double-click on the new desktop icon. It should display the webpage you are trying to print in Internet Explorer. Now you can print!

MOZILLA TEAM: FIX THIS NOW!!!!

https://support.mozilla.com/en-US/kb/Firefox+crashes#Getting_the_most_accurate_help_with_your_Firefox_crash

Type about:crashes in the URL bar and hit Enter. Click the hyperlinks to bring up the Crash Report pages and copy'n'paste the URL of each of those reports into the message box here. We'll see if we can help you figure out what is causing those crashes to happen.

If by any chance you're using an HP printer, be sure to disable the HP Smart Web Printing add-on (if it's installed). This fixed my issue where I couldn't get a print dialog box up, couldn't get Print Preview, and couldn't get anything with ctrl-P.

my HP can not print anything new in Firefox on webpages or emails. Help. Is there something on the Tools sections that I can use?

Does using { Ctrl + P } initiate printing?