Add extensions, get work done

Easily convert files in bulk. Most video, audio, image, e-book, office, archive & subtitle formats are supported. Minecraft files can be converted as well.

Simulate classical search bar by adding a search engine switch button. And you may customize your “default” search engine easily.

Website Informer is an ultimate tool to evaluate authority and popularity of websites you are visiting.

Search FTP servers over the web for music, videos, eBooks and other content.

Analyze domain dns zone and http status.

The LRT Power*Trust metric helps you evaluate the quality and trustworthiness of a domain or page you are currently visiting.

Lets you download the Transcripts of Youtube Videos as JSONs It does this by adding a download button to the vanilla Youtube transcript which uses some custom parsing in order to convert all data and metadata into a JSON that then gets downloaded.

Automatically detects and converts certain string patterns to hyperlinks. Supports: Pixiv, BaiduNetDisk, Bilibili, and Megnet Links. E.g. : Pixiv ID = 19260817 -> https://www.pixiv.net/member_illust.php?mode=medium&illust_id=19260817

Customizable popup with actions on text selection, just like in Opera browser

Simple Search

This extension highlights “traditional” or “ten blue link” search results provided by the search engine, laying them over the info boxes and other content. Close the window to view the full results page. Compatible with Bing and Google search engines

Open search results in a new tab. Above FF 61, works with the omnibox/awesomebar AND the dedicated search box.

Search with GOOD and support solutions that positively change the world.

Browse the web anonymously without any barriers!

SERP Keyword Extractor simplifies your keyword research process. Extract user questions (people also ask), related searches & more directly from Google (Web, Trends, Image & shopping) or Bing search results

Automatically find and display harbor freight coupons on their website from hfqpdb.com

Opens an ITA Matrix itinerary on BookWithMatrix to easily book it. For more information, visit https://bookwithmatrix.com

Extension that allows for searching strings in texts through multiple words with an ability to decide a tolerable amount of character between them. In addition, it allows for multiple searches to be highlighted on the same page at the same time.

Промокоды, кешбэк и скидки в интернет-магазинах

Double-click a word on any website and instantly get its definition at TheFreeDictionary.com, the world's most comprehensive dictionary! Or use the search bar to search directly from the browser toolbar.

Right click any word and look up the definition from Oxford Advanced Learner's Dictionary

Notifies you when there are money-saving offers available for the site you're currently browsing. Click the notification to go directly to the merchant's page on Offers.com and view all the available offers, coupons and promotions!

Remember Everything You Read Online. An open-source and privacy focused extension to Full-Text Search, Annotate and Organise your Web-Research