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How do I get AC_RunActiveContent.js?

  • 3 replies
  • 146 have this problem
  • 14 views
  • Last reply by cor-el

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The website listed below brings up a panel that says "This page requires AC_RunActiveContent.js." and won't run.

All Replies (3)

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Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"



Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

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Clearing the cache fixed it. Didn't have to mess with the cookies. Thank you very much. I couldn't imagine that the cache would cause such behavior.

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You're welcome

You may have had a corrupted file AC_RunActiveContent.js in the cache that was working.

First to try is always to reload and bypass the cache in case of unexplained problems.

Reload web page(s) and bypass the cache.

  • Press and hold Shift and left-click the Reload button.
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Cmd + Shift + R" (MAC)