Open With :: Add-ons for Firefox
Need to test your web pages out in Internet Explorer, Chrome, Safari, Opera (or anything else for that matter)?
Open With adds options to various parts of your browser for opening the current page in another browser.
Comments:
I spotted this on LifeHacker and I like it. I still prefer Firefox over Chrome but when I need to open a page in IE or Chrome (for speed or whatever) this add-on appears to do the trick.