Some Firefox add-ons (e.g., Smart Bookmarks Bar) are not available as extensions for Chrome. Is there a way to install Firefox add-ons in Chrome or to install them in one of the Firefox-tab extensions?
The Mozilla Gecko Tab extension lets you open a page with the Gecko rendering engine in Chrome. (Of course, you need to have a Mozilla browser installed for it to work.)
The same dev also made the IE Tab Multi extension with the same interface and options.