Here are some handy extensions for Google Chrome and Mozilla Firefox that will allow you to close all duplicate tabs with a single-click.
Resume YouTube Videos from Last Played Position in Chrome & Firefox
Here are some handy extensions for Google Chrome and Mozilla Firefox that adds auto-resume feature to YouTube videos.
View Web Page Headings on Scrollbar in Chrome & Firefox
Quickly find and jump to the desired content on a webpage with these handy extensions for Chrome and Firefox browser.
Google Chrome, Firefox: Combine / Merge All Open Windows into One
Here are a few extensions to combine all of the individual open tabs and windows into a single window in Google Chrome and Firefox.
Find and Replace Text in Google Chrome & Mozilla Firefox
Here are extensions for Google Chrome and Mozilla Firefox which will allow you to find and replace text in input fields, textareas, and other places on a webpage.
Show File Type Icon for Gmail Attachment on Chrome & Firefox
Here are two extensions that will enable you to identify Gmail attachment file type without opening the mail in Google Chrome and Mozilla Firefox.
Rearrange Chrome and Firefox Tabs with Keyboard Shortcuts
Add keyboard shortcut functionality to Chrome and Firefox to reorder tabs by moving to left, right, start or end position.
Turn Off CSS on a Specific Website in Browser
Quickly disable Cascading Style Sheets for a certain website using a bookmarklet or the browser’s native feature.
Set Custom User Agent on a Per-Site Basis in Chrome & Firefox
Set a particular User-Agent for a particular web site in Google Chrome and Mozilla Firefox to avoid the hassle of manual switching user agent every time you visit the site.
Add Favicon to JavaScript Bookmarklet in Firefox
Set any custom image as favicon to a JavaScript bookmarklet in Mozilla Firefox with Bookmark Favicon Changer add-on. It’s a free extension, and works will all flavours of Firefox.