Add-ons

Whois & Flags Firefox & Websites Popularity Rating by myip.ms

Display Country Flag indicating Website Physical Location (Country, State, City). Website Popularity (Live Visitor Statistics). Shows how many users are visiting any World Website per day. Website IP IPv6 Addresses, DNS, Hosting. IP Whois Lookup

Wikipedia (SSL) by SSL Search Bar

Wikipedia is an openly-editable, free content internet encyclopedia. This search bar add-on utilizes SSL to protect searches between You and Wikipedia.

Collector's Note Very good

From/To Column by Jonathan Kamens

Add a “From/To” column which shows the recipient if you are the sender.

Collector's Note Didn't install or test

lolifox - Fierr MOD by Virtual_ManPL, RealityRipple

Replaces the error page with a lolifox appearance with additional features.

FastPrevNext by Nils Maier

Easily browse through sequenced URLs

Collector's Note Didn't install or test

YouTube Anywhere Player by Diego Casorran

Watch videos anywhere in cinema mode without leaving the website you're on.

Collector's Note Didn't install or test

Edit Bookmark Plus by Kashif Iqbal Khan

Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.

Replacement of OpenBook addon

Collector's Note Didn't install or test

isoHunt Torrent Search by ^ ^

isoHunt Torrent Search

Collector's Note Good

Config Descriptions by Dave G

Shows source comments for advanced application preferences in about:config

Collector's Note Excellent, must have

Duplicate This Tab by vinay

This add-on provides the much needed feature update of Tab Duplication to Mozilla Browsers. Features Supported include Duplication of Browser Tabs, Detaching Tabs and Merging All Windows.

Collector's Note Didn't install or test

Acronym Finder by Jeremy Morton

Find acronym definitions quickly and easily.

Collector's Note Very good

Qtorrents Search by Qlabs

Search plugin for Qtorrents.com. The ultimate source for searching verified torrents and high quality downloads.

Collector's Note Good

1-click Online Document View by vinay

Open DOC, DOCX, PDF, PPT, PPTX and TIFF files linked in any webpage directly with Google Docs viewer using "1-click Online Document View", with a single left-click of your mouse / trackpad!!

Collector's Note Didn't install or test

BBCodeXtra by flod

(Sorry, no plans to port this add-on to Webextensions)
BBCodeXtra is an extension, compatible with Mozilla FireFox (up to 57) and Seamonkey, which adds to the context menu new commands to insert BBCode/Html/XHtml codes in an easy and fast way...

Collector's Note Didn't install or test

Fierr by RealityRipple

Replaces the error page with a more stylish appearance with additional features.