I love Firefox, however it's missing a feature that would help me a lot. I'm a developer and I switch between the Development and Production web site a lot. I'm worried I do some action in Production thinking I'm in the Develop one. To minimize the risk there are some measures I take. 1- I use a different user in the Development version 2- The Development version as a different color 3- I use a different browser for Production (Chromium) I would like to start using Firefox in Production too, but in order to make it safe I need to be able to change the Firefox icon in the Operating system status bar. This way I always see with icon in the Operation System status bar I should click to go to the Production Browser. If for security reasons the Firefox icon can not be changed for each profile, then if you add a "save to desktop" chrome like feature it should do the trick. In my particular use case, since the Development version does not have the favicon, It would be enough to Firefox display the favicon of the current selected tab instead of the Firefox icon. Thanks