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Firefox doesn't know how to open this address, because the protocol (javscript) isn't associated with any program.

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  • Last reply by Gloria

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This is the error I get whenever I try to (for example) send an ecard from 123Greetings.com via the FACEBOOK button. Now, I have also noticed that lately I can't sign into websites through Facebook (like when a website gives you a choice to either sign in, or click the Facebook button to sign in through Facebook...) nothing happens. It just doesn't work. The only thing I have done recently is cleared my cache and cookies. I found this same question ARCHIVED on this site and I followed the instructions given to that person, which was going in to about:config and verifying that Javascript is enabled (It is) and that "network.protocol-handler.external.javascript" is False (and it is). So I don't know what to do beyond this. Please help me!

This is the error I get whenever I try to (for example) send an ecard from 123Greetings.com via the FACEBOOK button. Now, I have also noticed that lately I can't sign into websites through Facebook (like when a website gives you a choice to either sign in, or click the Facebook button to sign in through Facebook...) nothing happens. It just doesn't work. The only thing I have done recently is cleared my cache and cookies. I found this same question ARCHIVED on this site and I followed the instructions given to that person, which was going in to about:config and verifying that Javascript is enabled (It is) and that "network.protocol-handler.external.javascript" is False (and it is). So I don't know what to do beyond this. Please help me!

Chosen solution

It just occurred to me that I DID add on "Disconnect" and that's when I started having the problems! So I immediately went in and disabled it and it fixed it!!!! Thank you so very much for your quick response! I am so happy that this particular problem is fixed!!!! YAHOOO!!

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In case you haven't already tried it, to rule out one of your extensions as the culprit, can you reproduce the problem in Firefox's Safe Mode? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

Not all add-ons are disabled: Flash and other plugins still run

After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (not Reset).

Any difference?

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Actually, upon reading your second symptom about not being able to sign on with Facebook, maybe it's "Disconnect"? You can configure/disable individual extensions on the Add-ons page. Either:

  • Ctrl+Shift+a
  • "3-bar" menu button (or Tools menu) > Add-ons

In the left column, click Extensions.

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Chosen Solution

It just occurred to me that I DID add on "Disconnect" and that's when I started having the problems! So I immediately went in and disabled it and it fixed it!!!! Thank you so very much for your quick response! I am so happy that this particular problem is fixed!!!! YAHOOO!!