Why wont pdfs open in firefox

HI see if this rattles it's cage : uninstall Firefox. Then run Windows Disk Cleanup. Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's Then run it again and click the button that says Cleanup System Files.

Note: your Firefox Profile is saved. But you should make a back up before you do :. Note : need View PDF files in Firefox or choose another viewer Applications panel - Set how Firefox handles different types of files Change what Firefox does when you click on or download a file. If you have an add-on installed such as the one from Adobe, try disabling it. The Preview in Firefox option should be available in that case. Learn More. Chosen solution It sounds like maybe you have accidentally changed the default PDF program that Firefox uses.

Hope this helps. Wesley Branton. If you go to the Firefox settings page and scroll down to the '''Applications''' section, you should see the '''Portable Document Format PDF ''' content type listed there. Is there a way to fix this? Not seeing pdfs in browser is significantly annoying. You can create a new profile as a quick test to see if your current profile is causing the problem.

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

I tried a few public sights and it seems to be working. The one I am having issue with is secure, so I will try to contact them directly. It must be an issue on their end. If PDF files are still downloaded instead of displayed, try these solutions Reset download actions. The Troubleshooting Information tab will open. Under the Application Basics section, click on Show Folder.

A window with your profile files will open. I have been using Firefox as my default application to open PDF files and everything worked correctly until recently. Now when I open a PDF, the file opens a blank browser tab and continues to open more blank tabs until I close Firefox to stop more tabs from opening.

Firefox Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons extensions and themes. If the issue is not present in Firefox Safe Mode , your problem is probably caused by an extension, theme, or hardware acceleration.

Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause. To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help others with the same problem.