Firefox Addon To Do Something Everytime A User Hits Enter In The Address Bar

I'm trying to write an extension that monitors every time someone types hits enter when using the address bar. The steps would be something along the lines of User types in a bunc

Solution 1:

I think the following link would help. You need to implement Progress Listeners, they allow extensions to be notified whenever some events happen associated with the document. You can also extend this to multiple tabs. Please try the link

https://developer.mozilla.org/en/Code_snippets/Progress_Listeners#Example.3a_Notification_when_the_value_in_Address_Bar_changes

Hope it helps :)