Content Type Handler Applications

This section provides a tutorial example on how to review and modify Content Type handling actions and handler applications in Firefox.

The next Firefox option area to review and modify is how Firefox handles different types of documents on the Internet. For each type, Firefox offers several action options like:

1. Run Firefox and click "Tools > Options" menu. Then click the "Applications" tab.

2. Review and change actions associated different types of documents as suggested below:

Applications                          Action
------------                          ------
Adobe Acrobat Document                Use Adobe Reader
Adobe Acrobat Forms Document          Always ask
Adobe Acrobat Forms Document          Always ask
Adobe Acrobat XML Data Package File   Always ask
AU Format Sound                       Use Windows Media Player
conf                                  Always ask
E-mail Message                        Always ask
Executable Jar File                   Always ask
irc                                   Always ask
ircs                                  Always ask
JPEG Image (image/ipeg)               Use Windows Photo Viewer
...

Remember to set action to "Always ask", if you don't have a trusted application to handle the content type. You can decide what to do when Firefox prompts you.

The picture below shows the list of content types and their associated actions:
Firefox General Options

Last update: 2013.

Table of Contents

 About This Windows Security Book

 Windows 8: System Security Review

 Windows 8: System Security Protection

 Windows 8 System Recovery

 Windows 8 Defender for Real-Time Protection

 Windows 7: System Security Review

 Windows 7: System Security Protection

 Windows 7 System Recovery

 Windows 7 Forefront Client Security

 Norton Power Eraser - Anti-Virus Scan Tool

 McAfee Virus and Malware Protection Tools

 Spybot - Spyware Blocker, Detection and Removal

Keeping Firefox Secure

 Keeping Firefox Up To Date

 Start and Download Options for Firefox

Content Type Handler Applications

 Privacy Options: Tracking, History and Cookies

 Security Options: Add-Ons and Passwords

 Deleting Cookies Stored in Firefox

 Getting New Add-Ons in Firefox

 Disabling Extension Add-Ons in Firefox

 Disabling Plugin Add-Ons in Firefox

 Disabling Search Engines in Firefox

 Reviewing Advanced Settings in Firefox

 Keeping IE (Internet Explorer) Secure

 Malware (Adware, Spyware, Trojan, Worm, and Virus)

 HijackThis - Browser Hijacker Diagnosis Tool

 IE Add-on Program Listing and Removal

 "Conduit Search" - Malware Detection and Removal

 "Tube Dimmer", "Scorpion Saver" or "Adpeak" Malware

 Malware Manual Removal Experience

 Vundo (VirtuMonde/VirtuMundo) - vtsts.dll Removal

 Trojan and Malware "Puper" Description and Removal

 VSToolbar (VSAdd-in.dll) - Description and Removal

 PWS (Password Stealer) Trojan Infection Removal

 MS08-001 Vulnerability on Windows Systems

 Antivirus System PRO

 References

 PDF Printing Version