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AutoHiDPI

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.

Rated 4 out of 5 stars (22)
1,155 users

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.

Rated 5 out of 5 stars (158)
85,353 users

RC Print Requires Restart

Adds a "Print" option to the Right-Click context menu.

Rated 5 out of 5 stars (2)
1,451 users

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.

Rated 4 out of 5 stars (4)
5,310 users

colorPicker

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.

Rated 4 out of 5 stars (46)
76,168 users

Hide all Images Requires Restart

Hides all images / backgrounds / video / multimedia / flash elements on any page for increased privacy and readability.

Rated 4 out of 5 stars (25)
1,531 users

Vertical Tabs Reloaded

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.

Rated 4 out of 5 stars (30)
1,389 users

Picture Blocker

Block/Allow images by pressing user-defined hotkeys or a toggle button.

Rated 4 out of 5 stars (15)
2,859 users

Rename Tab Title Compatible with Firefox 57+

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.

Rated 4 out of 5 stars (28)
1,790 users

JSON-formatter

Click addon's icon to quick format JSON document with tabs and new lines.

Rated 4 out of 5 stars (9)
6,779 users

Tab Tree

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.

Rated 4 out of 5 stars (136)
7,291 users

Element Inspector

In the DOM Inspector,quickly navigate to the any elements

Rated 5 out of 5 stars (33)
3,085 users

Activate Reader View

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.

Rated 4 out of 5 stars (11)
3,581 users

Pick That Color

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'.

Rated 4 out of 5 stars (9)
2,019 users

Open in IE

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!

Rated 4 out of 5 stars (52)
9,854 users

Bookmarks Favicon Images Requires Restart

Customize Bookmarks Favicon Images

Rated 4 out of 5 stars (37)
3,319 users

Regex Find Requires Restart

Adds Regular expressions functionality to the findbar

Rated 4 out of 5 stars (29)
989 users

Tab Colors

A basic add-on that lets you specify background colors for inactive tabs.

Rated 3 out of 5 stars (13)
1,043 users

JavaScript on-off applet Requires Restart

Applet for JavaScript simple On/Off

Rated 4 out of 5 stars (8)
47,879 users

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.

Rated 4 out of 5 stars (36)
19,188 users