Tell me more ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.
up vote 1 down vote favorite

Just installed FF4, and I'm trying to install adblock, but due to network policies, I cannot install it from the web site.

I've tried saving the xbi file (adblock_plus-1.3.3-fn+fx+sm+tb.xpi), and picking "Add addon from file", but I still get a message that says it's not compatible with FF4.

Is there a different file, or am I doing something wrong? Is there any way to install extenstions without network connectivity?

share|improve this question
Strange. Tried it on a virtual machine with a fresh FF4 installation. I downloaded the xpi file and then killed the connection on the virtual machine - FF would not let me install it. BUT - restored the connection and then it installed without any problems. Looks like FF is checking something over the connection and won't let you install without it.. – Siim K Mar 23 '11 at 14:38
@Siim: Right. The problem is I'm behind a very aggressive firewall, so it can't connect to verify. – chris Mar 23 '11 at 15:06

1 Answer

up vote 1 down vote accepted

Workaround to avoid the compatibility test:

  • Open about:config from the address bar
  • Right-click somewhere on the preferences list and then select New -> Boolean
  • Enter extensions.checkCompatibility.4.0 as the preference name
  • Set the boolean value to false

You should be able to install the add-ons now from file

A drawback is a nag message in the Add-ons Manager

share|improve this answer
Thank you! One other drawback is that it will re-enable all of the disabled add-ons, some of which may actually be incompatible - you'll probably want to go and disable them and test before re-enabling them. – chris Mar 23 '11 at 15:50

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.