Go to the [https://addons.mozilla.org/en-US/firefox/ Mozilla Add-ons Web Page] {web Link} (There’s a lot of good stuff here) and search for what you want. There used to be such an add-on.

Hello ranjitklitaCBI, Just in case the above doesn't solve your problem; would you please take a look at the article : [https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file Change what Firefox does when you click on or download a file] Especially the section : "'''Preview in Firefox''' : Select this if you want Firefox to display the content. It's only applicable to a limited number of types, those that Firefox is able to decode such as Portable Document Format (PDF). " But maybe this doesn't even come close to what you are looking <BR>for .....