xpinsall.enabled does not appear on list when typed into filter
after downloading add-ons and restarting firefox, the add-ons still are not functioning. the tools menu looks as if no add-on is there. the trouble shooting guide had me type in about:config into the search line. and then asked me to type in xpinstall.enabled into the filter, while there are other xpinstall features, xpinstall.enabled does not show up on the list
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The xpinsall.enabled pref is a hidden pref in Firefox 4 and is only there if you've created it. If it isn't there then it defaults to enabled. You will get a pop-up asking for permission if the pref is false.
Do you get a message that you need to close and restart Firefox to finish the installation?
See also:
Thanx but I found out why the add-ons did not install. The add-ons are not available for the latest version of Firefox I found acceptable alternatives that did install.