pastego is a Firefox extension that will go to the URL in clipboard (or Linux selection buffer) when the toolbar button is clicked or the menu item is selected.
The url opens in a new tab by default; change the preferences if you prefer it to open in the same tab. This extension has a similar goal to that of paste and go, but provides a menu entry and toolbar button, which I have found more convenient.
· Mozilla Firefox
What's New in This Release: [ read full changelog ]
· Added a button to search (in addition to directly loading the url)