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I want to restore to a previous version.

Posted

i let Firefox migrate my v18.0.2 to v19. I want to restore to v18 because PDF access is too slow on v19. I don't know where to find v18 to install it again. By letting Firefox do migrations, I never actually download and save the versions. I have no idea where Firefox is saving them on my system.

Additional System Details

Installed Plug-ins

  • Google Update
  • Shockwave Flash 11.5 r502
  • Next Generation Java Plug-in 10.13.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • DivX Plus Web Player version 2.2.2.14
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.5
  • VLC media player Web Plugin 2.0.2
  • RealNetworks(tm) RealDownloader Chrome Background Extension Plug-In
  • RealNetworks(tm) RealDownloader PepperFlashVideoShim Plug-In
  • RealNetworks(tm) RealDownloader HTML5VideoShim Plug-In
  • RealDownloader Plugin
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Garmin Communicator Plug-In 4.0.4.0
  • iTunes Detector Plug-in
  • Facebook Video Calling Plugin
  • GEPlugin
  • Google Updater pluginhttp://pack.google.com/
  • DivX VOD Helper Plug-in
  • Garmin Communicator Plug-In 2.9.1.7
  • npybrowserplus_2.4.17
  • Yahoo Application State Plugin version 1.0.0.7
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.0; rv:19.0) Gecko/20100101 Firefox/19.0

More Information

philipp
  • Top 10 Contributor
  • Moderator
2046 solutions 8901 answers

hello, firefox 19 has introduced its own integrated pdf viewer - if you want to switch back to the plugin you've used before to view pdfs just go to firefox options > applications & define the default action for the portable document format (pdf).

View PDF files in Firefox without downloading them