Firefox add-on with keyword - problem

Problem dude?

Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)

Get all problems for Codeforces problems for a certain contest on every page.

Jamaica , black, green, gold

Filter problem list on cses.fi based on topics, and personal status

Replaces the word 'problem' with word 'pickle' every where in the text on web page for each web site.

Read ePub files right in Firefox. No additional software needed!

Online harassment is a problem. The solution? People being less terrible. Until then, this extension replaces "bitch" and other derogatory words like it with "boss" all across the internet.

Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!

Stylish audio equalizer in toolbar popup.

Pull up a Roblox user's profile by entering their username or ID.

Easily copy the current LeetCode problem description to your clipboard.

Fetch and display Developer Tips, News and Blogs from DevProblems

Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.

Get rating for Codeforces problems even with problem tags off.

The Mass Downloader for your browser

Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!

With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.

Rewrites BBC news content to include Theresa May and Brexit puns. It's too depressing to read otherwise.

MS Paint Adventures MSPA Problem Sleuth Pickle Inspector Ace Dick pose as a team what pumpkin Homestuck mspaintadventures.com

Parses competitive programming problems and sends them to various tools like CP Editor and CPH.

Opens a random problem from site with programming problems Eolymp in a new tab.

Get international weather updates (via AccuWeather.com) displayed right in Firefox with this highly customizable extension.

Download youtube videos as mp3/mp4/ogg/webm fast and easy! Adding mirrors everyday to decrease any downtime! We monitor comments and work to fix any problems as soon as possible!

Watch free LeetCode video ▶ solutions on the problem page itself.