ezUP

Works perfect, but for long URL the UI is really not wide enough. Wider UI and much smaller font size would have been much better for easy use.

It gets the job done. I would prefer a different UI where a single click just goes up one level and where a right-click opens the menu we see today, but that's a matter of personal preference, not an actual problem.

Does exactly what it says it will do, and works consistently with no problems. Going up through the levels of a website is something I do constantly, and this little extension saves me a lot of time and keystrokes. Just one click for each level up, and there I am! I have also used EZ Link Preview and EZ Search Overlay by this same developer, and they are excellent as well