Downloading and File Management
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Easiest YouTube Video Downloader
This Addon simply adds a dropdown button that lets you download YouTube Videos in various Formats. Download YouTube Videos in FLV, 3GP, MP3, MP4, 720p, 1080p in a single click.
InlineDisposition
InlineDisposition changes the disposition of Content-Disposition response headers from attachment to inline; this prevents servers from forcing the browser to save a file and allows that file to be viewed in the browser, if the browser supports it.
Polskie Radio podcast download
Obsługa wbudowanego playera, aktualizuj: https://addons.mozilla.org/pl/firefox/addon/podcast-polskieradio/versions/0.9
Dodaje opcję pobierania (link "Pobierz") podcastów ze stron Polskiego Radia http://polskieradio.pl/ do plików MP3/FLV na dysk.
No More Install Delay
UPDATE: XPI delay has been removed in Firefox 40!
Disable the install delay in Firefox. New 2.0 version now includes GreaseMonkey scripts!
Unlike similar addons, this works on Firefox 4 and beyond.
BackupHelper Plus for ScrapBook Plus / XSidebar Requires Restart
BackupHelper is an Add-On to the firefox extension ScrapBook / ScrapBook Plus. This is modified version of the original Add-On. Uninstall the original BackupHelper before you use this extension.
AutoSave Plus for ScrapBook Plus / XSidebar Requires Restart
AutoSave is an Add-On to the firefox extension ScrapBook Plus by haselnuss and ScrapBook with XSidebar for SeaMonkey. This is a modified version of the original Add-On. Uninstall the original AutoSave before you use this extension.
CopyPageInfo Plus for ScrapBook Plus / XSidebar Requires Restart
CopyPageInfo Plus is an Add-On to the firefox extension Scrapbook Plus by haselnuss or ScrapBook with XSidebar for Seamonkey. This is modified version of the original Add-On. Uninstall the original CopyPageInfo before you use this extension.
ALLYouTubeDownloader Requires Restart
ALLYouTubeDownloader extention (FLV/MP4/WebM; HD/HQ). Windows only. Works only with ALL YouTube Downloader 2.3 application or higher (versions 2.2 and lower doesn't work anymore).
Homepage: http://www.allplayer.org/youtube-to-allplayer
Preserve Download Modification Timestamp Requires Restart
Preserve the modification timestamp, sent by the server, for downloaded files
Cookie Importer Requires Restart
Imports cookies from a textfile.
Reads Netscape standard cookies.txt files as exported by IE and others.
Very useful in combination with the Cookie Exporter add-on.
VKontakte.ru Downloader (music/videos/photos @ VK) Requires Restart
Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.
Complete YouTube Saver Requires Restart
Download YouTube videos in various formats including 1080p, 4K etc (DASH formats). Convert audio track from videos to MP3 or WAV, or save audio in native format (Ogg, AAC/M4A, MP3, OPUS). Save YouTube page, video, comments and subtitles to one folder
Extended Link Properties + (obsolete) Requires Restart
This application extends the Link Properties and displays File Size, Last Modified Date, Content Type and HTTP Header of a link...
Warning: developing discontinued, see least
Cookie Exporter Requires Restart
Exports all cookies in IE manner.
Makes a Netscape standard cookies.txt file.
Very useful for WGET --load-cookies option.
DownThemAll! AntiContainer Requires Restart
Make the resources behind container pages easily downloadable by DownThemAll!
Tooltip Plus Requires Restart
Show tooltips for links and images with URLs, icons, alt text, and long titles.
AutoProxy Requires Restart
Are you concerned about your privacy? Or, are you blocked from some websites by a firewall? And, are you arming yourself with a proxy? In that case, AutoProxy is designed for you! A tool to help you use your proxy automatically & efficiently.
OpenDownload² Requires Restart
OpenDownload² extends the "Save" dialog by a "Run" button to open the file directly.
NetVideoHunter Requires Restart
This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...
To create your own collections, you must have a Mozilla Add-ons account.