My Favorite Add-ons

by puinha

12 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,380 reviews

1,162,210 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Web Developer by chrispederick

Rated 4 out of 5 stars 365 reviews

289,285 users

The Web Developer extension adds various web developer tools to the browser.

Evernote Web Clipper by Evernote

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.

Html Validator by Marc Gueury

Rated 4 out of 5 stars 210 reviews

30,532 users

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.

SearchPreview by Edward Ackroyd

Rated 4 out of 5 stars 385 reviews

50,720 users

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

Rated 5 out of 5 stars 68 reviews

51,500 users

Possui a maioria das palavras existentes em português do Brasil, de acordo com o novo acordo ortográfico que entrou em vigor janeiro de 2009. É Atualizado constantemente.

Precisa de ajuda?
facebook.com/RescueLanguage
rescuelanguage.sf.net

Screengrab by Andy M

Rated 4 out of 5 stars 575 reviews

11,072 users

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 by YSlow

Rated 3 out of 5 stars 208 reviews

33,573 users

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.

Extended Statusbar by Strahinja Kustudić

Rated 4 out of 5 stars 251 reviews

34,438 users

A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)

Feedly - Beyond Google Reader by feedly

Download Now

Experimental

Rated 5 out of 5 stars 3,264 reviews

4,523 users

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.

HeadingsMap by Rumoroso

Rated 4 out of 5 stars 19 reviews

2,995 users

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 - social bookmarks (Instapaper) by bojanbabic

Rated 3 out of 5 stars 32 reviews

588 users

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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