This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Əgər kömək lazımdırsa lütfən yeni sual verin.

error application has failed to start because plds4.dll keeps popping up - how do I fix it?

  • 2 cavab
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

DarcyK
DarcyK
more options

I'm trying to open Firefox & this error keeps popping up:

"error application has failed to start because plds4.dll"

I've tried reboot the computer but that has not helped.

I'm trying to open Firefox & this error keeps popping up: "error application has failed to start because plds4.dll" I've tried reboot the computer but that has not helped.

All Replies (2)

philipp
philipp
  • Moderator
more options

hello darcyK, please try to reinstall firefox:

  • download the full firefox setup file from getfirefox.com
  • uninstall firefox on the machine (but don't chose to delete your custom files & settings in the uninstaller)
  • manually delete all remaining files in the firefox program folder, which usually resides in C:\Program Files\Mozilla Firefox\
  • reinstall firefox
cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can also try to run Firefox once as Administrator or reboot the computer and login as Administrator to see if that helps.