Some links will always open in a new tab but this may not always be the behaviour you would like. This add-on adds a new context menu item that forces the link to open in the current tab.

ShortcutKey2URL for Firefox WebExtensions is an extension for Firefox that allows you to open, and move url using shortcut keys. You can also run JavaScript.
I released WebExtensions version in Firefox 60.

This extension will read aloud selected text

Add, edit, copy, remove, export and import local- and session- storage data

Catches CMD-Q, mac users know the problem, if a pc users trys to enter a @, they often press cmd-q and by that close firefox. This addon prevents the close on first CMD-Q press, if you realy intend to close firefox you have to press it twice

This extension allows the user to use Awami Nastaliq font to see Urdu and other languages that written in Arabic scripts.

Like Cenafy, but for Firefox.

On every page load, there is a small chance it will load the famous "It's John Cena!" video instead. Great for installing on other people's computers.

Redirects mobile pages to classic (desktop) pages

Adds minimal digital clock in Toolbar.

This is a very simple add-on that displays the current time 'hhmm' in Toolbar.

Fixes the 'Download All Files' button to actually download a zip of all available files.

Convert MS Word documents (doc and docx) into PDF format

Disables WebRTC to prevent IP leak while on VPN.

Redireciona o endereço atual para o link equivalente com o sufixo do novo sistema do Portal de Periódicos da CAPES.

Hackbar port for the new WebExtensions API.
It's redesigned and optimized to work with the new Firefox Quantum.
It sits in your DevTools - Click F12 to open it.

Any suggestions and/or issues are welcome :)

Displays target URL in tooltip, when hovering over a link.

Default actions stay as usual.
You can still "open the link in new tab" or "close tab" with middle-click.

But now middle-click on an empty space on page to go back.
In options, you can set middle-click to close the tab if no page to go back.

Supercharge your Desmos graph creation and sharing experience with many convenient features

AirReview makes it easier for Airbnb hosts and vacation rental investors to see every Airbnb’s average income & other important metrics. The Guest Review tool also helps you with screening guests too.

Calculate the salary range for jobs advertised on Seek.

Adds the ability to search the user's Google Drive

Add functions for Gmail Basic HTML view

Site enhancements for VeeHD.com members and guests.
"This is how VeeHD was meant to be..."

LeetCode Timer helps you time yourself when solving LeetCode problems.

Allows user control of whether cookies may be set, on a per-domain basis.

Salesforce Credentials Manager

Highlighter allows you to save notable quotes, or "highlights", while reading in your favorite web browser. No matter what or where you read, your highlights are always available to reference whenever you need them.

Bridge between Mozilla Firefox and Progressive Downloader.

VProxy is an HTTPS proxy disguised an HTTPS web site. SwitchyOmega for VProxy allows you to connect to Internet via VProxy.

A simple to do page that requires no permissions!

SoundCloud Account Manager: Quickly switch between multiple SoundCloud accounts.