As we know about renaming the files and folders in windows, renaming the tabs in Firefox Browser is also very simple. TabRenamizer – an add-on for the Firefox Browser makes this possible. You will have to install this add-on for your Firefox Browser which is a free download.
Download Link: https://addons.mozilla.org/en-US/firefox/addon/2987/
When you get on to this link, click the button “Add to Firefox” which will install this application. When you are done with the installation a restart is required to make this work. Open up multiple tabs and you can see when you right click on any of the tab an option “Rename this tab” which wouldn’t have been present before this application is installed. You can also press F2 to rename the tabs.