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Viewing PDF-Files in Firefox 76.0.1 not possible - strange behavior
I always used Firefox as PDF-Viewer and it worked fine. But since the last update it is not possible to view PDF-files anymore: whenever I click on a PDF or a link to a PDF - Firefox creates new tabs endlessly. When I quit Firefox and restart it I have lots of new and empty tabs in the browser, but no PDF. It's very annoying because I have to close them all manually and can't view PDFs anymore.
I have not installed any new software, no registry hacks, have changed nothing in the browsers config, so I suppose it has something to do with the update to 76.0.1
Any ideas? Thanks in advance.
All Replies (1)
Hi klaus.kolba, glad to see you in Mozilla Support Forum.
Firefox may repeatedly open new, empty tabs or windows after you click on a link, forcing you to close Firefox. The same untitled tabs or blank windows may open the next time you start Firefox if the previous session is restored.
This usually happens because you chose Firefox as the program to always use for a particular action, such as opening a certain type of file or launching an application to send mail.
Note: The Refresh Firefox Feature can fix many issues by restoring Firefox to its default state while saving your essential information. Consider using it before going through a lengthy troubleshooting process.
You can also try:-
Start a new Firefox session
You may be forced to close Firefox if it is repeatedly opening multiple tabs or windows. Firefox includes a Session Restore feature that can restore your windows and tabs from the previous session after a crash or unexpected close.
The same multiple tabs or windows may start opening when you next start Firefox, forcing you to close Firefox again. If you see a Restore Session "Sorry. We're having trouble getting your pages back.") page when you restart Firefox, click the Start New Session button to start a new session and then follow the instructions given below to fix the problem.
Check for malware
If the problem is still not solved, or if Firefox is opening multiple tabs or windows with unwanted content, consider that your system may be infected by malware. For more information, see Troubleshoot Firefox issues caused by malware.
Reference :- Article
If it doesn't solved your problem, then feel free to ask in Reply Section. Thanks for raising your question in Mozilla Support forum.