My Favorite Add-ons
About this Collection
My favorite add-ons
12 Add-ons in this Collection
Firebug by Joe Hewitt, Jan Odvarko, others
The Web Developer extension adds various web developer tools to the browser.
Use the Evernote Web Clipper to save things you see on the web into your Evernote account.
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon
For Firefox 56, use 0.974 (see all versions below).
For Firefox 57, see Web Extensions.
The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails), popularity ranks and sponsored links (where available) into Google™, DuckDuckGo™, Yahoo™ and Bing™ searches.
Verificador Ortográfico para Português do Brasil by Vinícius Della Líbera, Adriana Quintanilha, others
Screengrab by Andy M
Screengrab! saves webpages as images... but not for new versions of Firefox.
FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.
Therefore, Screengrab is EOL.
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.
A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)
A productive way to organize, read and share the content of your favorite feeds, blogs and news sites. Feedly offers a seamless transition from Google Reader.
The extension generates a documentmap or index of any web document structured with headings and/or with sections in HTML 5. It shows the headings structure, the errors in the structure (ie. incorrect levels), and it works as HTML5 Outliner too.
Instaright is social bookmarking platform and recommendation service.
With Instaright on a single click you can save article, links on article or text selection from article. Firefox enhancement for Instapaper. Earn badges while surfing.
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