FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.
Grab and download media (image, audio, and video) resources by monitoring network (like FlashGot or Flash video downloader extensions)
Easily download most popular video formats.
Download YouTube videos in all available formats and extract the original audio files
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.
Скачивание музыки с сервисов Яндекс.Музыка и Яндекс.Радио
If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.
Open your Microsoft Visio files for free
An image downloader built with webextensions
Open and download links with IDM (Internet Download Manager) - the fastest downloader, compatible with new Firefox Quantum 57+.
Video & Flash Download Manager is a great download helper tool that lets you download and Flash videos (YouTube, Facebook, Dailymotion, Google Video,or just collect them in your video list without downloading them. Support FireFox 57+ Quantum.
Captures the web page faithfully with highly customizable configurations.