Set a different pixel ratio (layout.css.devPixelsPerPx) for each of your screens. Useful for mixed-DPI multi-monitor setups. For example, you can use it if you have one HiDPI (Retina) screen and one lower-DPI HD screen.
Zoom Page Requires Restart
Full featured zoom manager with independent page and image zoom modes. Choose from four zoom modes: Default Zoom, Fit-To-Width, Default Zoom + Site Specific or Fit-To-Width + Site Specific. Button style and zoom levels are fully configurable.
RC Print Requires Restart
Adds a "Print" option to the Right-Click context menu.
Reset Kiosk Requires Restart
Reset homepage view after period of inactivity, aka 'kiosk mode'. Options for forcing fullscreen mode and clearing recent browsing history, cookies and cache.
A very simple extension for learning web page colors. Copy the RGB or Hex color code of any pixel displayed in your browser to the clipboard (in CSS/HTML format). Similar in function to Internet Explorer's color picker.
Hide all Images Requires Restart
Hides all images / backgrounds / video / multimedia / flash elements on any page for increased privacy and readability.
This Firefox add-on arranges tabs in a vertical rather than horizontal fashion.
A WebExtension version is in work! See https://github.com/Croydon/vertical-tabs-reloaded/issues/13 for more information.
Block/Allow images by pressing user-defined hotkeys or a toggle button.
Renames the Tab Title (Persistent across the sessions).
Renaming to add custom words in tab titles makes it easy to search for tabs in the address bar.
Click addon's icon to quick format JSON document with tabs and new lines.
Tab Tree shows your tabs in the form of a tree structure. And also makes the user interface compact (optionally) to allow more space for the Web.
In the DOM Inspector,quickly navigate to the any elements
This add-on adds a button to the toolbar. Clicking on it activates the Reader View even if the icon in the address bar is not present. Technically this add-on prepends "about:reader?url=" to the current tab's address.
A lightweight addon for selecting any color from web pages. It copies the Hex color code of any pixel that is displayed in your browser to clipboard. Just click the color wheel button near your address bar or press 'Ctrl+Shift+z'.
This add-on enables you to open a link or the current page in a new Internet Explorer window. No more copying and pasting links for those sites that refuse to function correctly in Firefox!
Bookmarks Favicon Images Requires Restart
Customize Bookmarks Favicon Images
Regex Find Requires Restart
Adds Regular expressions functionality to the findbar
A basic add-on that lets you specify background colors for inactive tabs.
WebToPDF Requires Restart
Generate a PDF from webpage. Convert Webpage to PDF or Image. It will add all the contents of webpage even not in visible area . No Server processing.Supports different resolutions.