Firefox Missing Cert MIME Type Patcher

It's simple C# application which fixes missing MIME Types for certificates in Mozilla Firefox running on Windows.

How it works

Mozilla Firefox @ Windows has from long time (among others Bug 956189) problem with correct resolving MIME Types of certificates selected to upload. Fix for this is pretty simple - all you need to do is to add proper entries in mimeTypes.rdf file which is located in user Firefox Profile directory.

How to use

1. Run FirefoxMissingCertMimeTypePatcher.exe
   
2. Click Fix missing
   
3. Restart Firefox (if it's currently running)

How to rollback

If you want to rollback previous mimeTypes.rdf file, then remove it and rename mimeTypes.rdf.bak to mimeTypes.rdf . Note: .bak file is overwrtitten after every click on "Fix missing"

Supported MIME Types

• .pem (application/x-pem-file)
• .cer (application/pkix-cert)
• .crt (application/x-x509-user-cert)
• .der (application/x-x509-ca-cert)
• .p7b (application/x-pkcs7-certificates)
• .p7c (application/pkcs7-mime)
• .p12 (application/x-pkcs12)
• .pfx (application/x-pkcs12)

List created according to OpenSSL MIME Types