Add a link in Wikipedia pages that opens new tab with related images.
Results by Google images.

Read Now with Instapaper to remove ads and distractions from web pages and focus on your reading; or Read Later to put away tabs and web pages for when you’ve got the time for reading.

Searches the selected text using a search engine from your bookmarked search engines

Add multiple features to bandcamp.com

Easily find & copy any HTML5 symbol(s) from your browser toolbar popup UI

Finds the URLs in the comments of NSFW posts and displays a link next to the post.

Adds button to re-go to current url without reloading page.

Add a Page Action to every Pluralsight video player. Clicking the Page Action will create a new popup window with a transcript (if available) along with live highlighting and automatic scrolling in time with the video playback.

Automatically switch to cinema mode and use all available space in your browser window to display the video as large as possible.

List hosts and corresponding IP addresses of all network requests made from a given tab.

A replacement of IPvFox for Firefox Quantum. Functionality and appearances are aimed to be very close to the legacy extension.

Play Pool billiards without leaving your home, now it's in pop-up of your browser!

Opens mail.google.com after clicking on it. Does nothing else.

Change every web page style, darken background color and brighten font color, prevent users see high brightness web page.

Vertical tabs for Firefox 55+, using the SideBar API

Add a context menu for performing hard refresh (CTRL+F5). This is to avoid having to put your hands on the keyboard! This add-on is a remake of the legacy Hard Refresh plugin. We thank all for the comments and feedback.

Copy Tab URL is a WebExt-based Firefox add-on that allows users to copy the URL of a tab from the context menu.

Requires dom.event.clipboardevents.enabled to be enabled.

Access to a floating mobile version of Wikipedia on any webpage

Change most of the websites' background to any images. Right click your favorite image on other websites or local image opened in the browser to choose it as the background image. Control the opacity or turn on/off by clicking the icon of the addon.

Real time user feedback, collaboration and screen capture tool.

Find coupons and earn cashback at over 2,000 stores worldwide when you shop at Best of Discount! Save with online rebates, deals, promo codes and discounts.

Adds a timetable of your classes on the shopping cart page.

Insert Unicode characters at the text cursor location.

Deprecated in favor of https://addons.mozilla.org/en-US/firefox/addon/arc-dark-theme-we/

An easy-to-use and lite App for Skype web

Adds a View Page Source button to the toolbar

Easily vectorize an image (convert to SVG) in your browser!

Copy the title of the page.

Easily browse desired websites with tor (onion) proxy!

Open and redirect a link or the current page to somewhere else. You can redirect a link you clicked or the current page to Google's WebCache, Wayback Machine and archive.is and you can add more.

1. Jelöld ki a nem ismert szót az oldalon.
2. Kattints a jobb egérgombbal a kijelölt szón (helyérzékeny menü előhozása).
3. Kattints a bal egérgombbal a "Keresés a DictZone Angol-Magyar szótárban: ..." keresésednek megfelelő menüpontján.