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Firefox reports wrong pdf mime type

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Trying to upload pdf files from Firefox, pdf files get rejected as wrong file type, works in all other browsers. ? Thanks for your help.

Trying to upload pdf files from Firefox, pdf files get rejected as wrong file type, works in all other browsers. ? Thanks for your help.

Chosen solution

Try to delete the mimeTypes.rdf file in the Firefox Profile Folder to reset all file actions.

You can also check some keys in the registry with the registry editor.

  • HKEY_CLASSES_ROOT\.pdf

You can check the linked MIME type in the MIME Database key.

  • HKEY_CLASSES_ROOT\MIME\Database\Content Type
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cor-el
  • Top 10 Contributor
  • Moderator
15222 solutions 138066 answers

Chosen Solution

Try to delete the mimeTypes.rdf file in the Firefox Profile Folder to reset all file actions.

You can also check some keys in the registry with the registry editor.

  • HKEY_CLASSES_ROOT\.pdf

You can check the linked MIME type in the MIME Database key.

  • HKEY_CLASSES_ROOT\MIME\Database\Content Type
Try to delete the mimeTypes.rdf file in the Firefox Profile Folder to reset all file actions. *http://kb.mozillazine.org/mimeTypes.rdf *http://kb.mozillazine.org/File_types_and_download_actions#Resetting_download_actions You can also check some keys in the registry with the registry editor. * HKEY_CLASSES_ROOT\.pdf You can check the linked MIME type in the MIME Database key. * HKEY_CLASSES_ROOT\MIME\Database\Content Type

Modified by cor-el

Question owner

THANKS, cor-el!

I just moments ago actually found a link form Googling (http://support.mozilla.org/en-US/kb/cant-download-or-save-files?redirectlocale=en-US&redirectslug=Unable+to+download+or+save+files#w_change-file-type-settings) that showed me where to find that mimeTypes.rdf file you referenced above. The fix suggested was to rename the old rdf file and restart Firefox, which was essentially your first suggestion to reset all file actions, and it worked. Thanks for your help!

THANKS, cor-el! I just moments ago actually found a link form Googling (http://support.mozilla.org/en-US/kb/cant-download-or-save-files?redirectlocale=en-US&redirectslug=Unable+to+download+or+save+files#w_change-file-type-settings) that showed me where to find that mimeTypes.rdf file you referenced above. The fix suggested was to rename the old rdf file and restart Firefox, which was essentially your first suggestion to reset all file actions, and it worked. Thanks for your help!
cor-el
  • Top 10 Contributor
  • Moderator
15222 solutions 138066 answers

You're welcome

You're welcome