Recent answers to Still having problems opening PDFs in Firefoxhttps://support.mozilla.org/en-US/questions/9366302012-09-10T12:23:14-07:00Hi cor-el, Yes, I have deleted the mimeTypes.rdf twice (ideato above suggested it).
When I try to o2012-09-10T12:23:14-07:00karenwfrazierhttps://support.mozilla.org/en-US/questions/936630#answer-367126<p>Hi cor-el, Yes, I have deleted the mimeTypes.rdf twice (ideato above suggested it).
</p><p>When I try to open a pdf, I still get a blank webpage with "about:blank" in the navigation bar. Do you know of any other reasons why this might be happening?
</p><p>thanks!
</p>Did you try to delete the mimeTypes.rdf file in the Firefox Profile Folder to reset all file actions2012-09-09T22:38:20-07:00cor-elhttps://support.mozilla.org/en-US/questions/936630#answer-366938<p>Did you try to delete the mimeTypes.rdf file in the Firefox Profile Folder to reset all file actions?
</p>
<ul><li><a href="http://kb.mozillazine.org/mimeTypes.rdf" rel="nofollow">http://kb.mozillazine.org/mimeTypes.rdf</a>
</li><li><a href="http://kb.mozillazine.org/File_types_and_download_actions#Resetting_download_actions" rel="nofollow">http://kb.mozillazine.org/File_types_and_download_actions#Resetting_download_actions</a>
</li></ul>
<p>You can use this button to go to the Firefox profile folder:
</p>
<ul><li>Help &gt; Troubleshooting Information &gt; Profile Directory: Show Folder
</li></ul>Thanks for the suggestions, but no luck...
@ideato — I tried both of your suggestions, but I am stil2012-09-09T10:49:05-07:00karenwfrazierhttps://support.mozilla.org/en-US/questions/936630#answer-366857<p>Thanks for the suggestions, but no luck...
</p><p>@ideato — I tried both of your suggestions, but I am still getting a blank page. I don't think the problem is with Adobe Professional, because I am able to open pdfs from both Chrome and Safari.
</p><p>@cor-el — I tried that before I posted my question, based on suggestions to previous forum posters.
</p><p>Does anyone have any other ideas?
</p>Try to disable the Adobe Reader plugin in Firefox and use the external Adobe Reader application or P2012-09-09T04:19:02-07:00cor-elhttps://support.mozilla.org/en-US/questions/936630#answer-366775<p>Try to disable the Adobe Reader plugin in Firefox and use the external Adobe Reader application or Preview application instead.
</p>
<ul><li>Firefox &gt; Preferences &gt; Applications &gt; Adobe PDF document&nbsp;: Use Adobe Reader
</li></ul>
<p>PDF files may also be found under another entry like Portable document.
</p>
<ul><li><a href="https://support.mozilla.org/kb/change-firefox-behavior-when-open-file" rel="nofollow">https://support.mozilla.org/kb/change-firefox-behavior-when-open-file</a>
</li></ul>Hi karenwfrazier,
Try Reset download actions and check it again.
If the above did not solve the issu2012-09-09T02:29:39-07:00ideatohttps://support.mozilla.org/en-US/questions/936630#answer-366751<p>Hi karenwfrazier,
</p><p>Try <a href="http://support.mozilla.org/en-US/kb/view-pdf-files-firefox-without-downloading-them#w_reset-download-actions" rel="nofollow">Reset download actions</a> and check it again.
</p><p>If the above did not solve the issue try <a href="https://support.mozilla.org/en-US/kb/troubleshoot-issues-with-plugins-fix-problems#w_re-initializing-the-plugins-database" rel="nofollow">Re-initializing the plugins database</a> .
</p><p>see also&nbsp;: <a href="http://helpx.adobe.com/acrobat/kb/cant-view-pdf-web.html" rel="nofollow">Can't view PDF on the web</a>
</p><p><br>
</p><p>thank you
</p>