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 2,635 reviews

879,487 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 472 reviews

266,777 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.

SearchPreview by Edward Ackroyd

The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails) and popularity ranks 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 71 reviews

55,133 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

Html Validator by Marc Gueury

Rated 4 out of 5 stars 212 reviews

31,199 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.

Screengrab by Andy M

Rated 4 out of 5 stars 575 reviews

8,571 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 211 reviews

25,437 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.

HeadingsMap by Rumoroso

The extension generates a document-map 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.

Extended Statusbar by Strahinja Kustudić

Rated 4 out of 5 stars 256 reviews

25,537 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 3,262 reviews

2,820 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.

Instaright - social bookmarks (Instapaper) by bojanbabic

Rated 3 out of 5 stars 32 reviews

454 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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Collections are groups of related add-ons that anyone can create and share.

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