Firefox is a popular search engine created by by Mozilla AND it’s FREE to download! Firefox is also a highly secure browser and works on Windows, Linux and Mac. Their browser is very user friendly. By providing additional themes and extensions, Mozilla created their browser just for YOU! You can build it to your unique specifications and tweak according to your specific needs.
However, Mozilla didn’t forgot about search engine optimization and created specific extensions just for SEO that are easy to download and use. These are the BEST SEO addons recommended to add to your Firefox browser.

SEO for Firefox – A useful tool that pulls data research right into Yahoo’s and Google’s search results and includes some of the following features:

•    Page links – Shows estimated total number of links pointing to pages in Yahoo
•    Cached – Shows how many sites in Google are indexed
•    Provides Alexa site rankings
•    Gives PR stats (Google PageRank)
•    Bloglines – check out how many people are subscribed to certain blogs

SearchStatus 1.30

•    Displays Google PageRank, Compete Ranking, Alexa Rank and SEOmoz Linkscape mozRank in browser
•    Includes backward/related links
•    Fast keyword density analyzer

SeoQuake

•    Allows users/web developers to view large number of SE parameters on the internet
•    SEO Toolbar – Parameters shown in separate toolbar in browser
•    SEObar – Shows values of parameters of web pages currently opened in browser
•    Inclusion of parameters in SERPs (customized by users)

Page Speed

•    Used to evaluate web page performance
•    Web sites run faster – runs diagnostic tests
•    Reduces hosting costs and bandwidth
•    Performs tests on front-end code and web server configuration

SEOpen
•    Yahoo and Google backlinks
•    Alexa traffic and backlinks
•    Page size and PR checker
•    HTML validator

yExplore

•    Quickly accesses Yahoo Site explorer

Niche Watch Tool 1.0

•    Analyzes niche keyword competition
•    Gives backlink numbers, indexed pages, all in anchor, and page ranks
•    Builds high PR links – gain better search engine placement

Firebug
•    Includes web development tools
•    Allows you to inspect and edit HTML
•    Monitor and debug CSS and Javascript in live web pages
•    Find and edit DOM (Direct Object Model) quickly

X-Ray 0.9

•    Allows you to easily see how site was created
•    View tags on web pages without seeing source codes
•    Displays class and ID names

Web Developer 1.1.8

•    Includes many web developer tools
•    Adds toolbars and menu to browser

User Agent Switch 0.7.2

•    Adds toolbar and menu buttons to switch user agent of browser
•    Allows access to sites that restrict access

Google Global
Has over 20 features - views paid and organic searches from any location across the globe:

•    Cities
•    Regions
•    IP addresses
•    US zip codes
•    Different languages

Alexa Sparky

•    Shows Alexa information in your status bar
•    Provides Reach and Rank data about the sites you surf
•    Users can view web traffic metrics
•    Find out what sites are more popular than others
•    Allows you to web surf more efficiently – finds related links/sites
•    Won’t interrupt your web browsing

LinkChecker 0.6.3

•    Checks validity of site links
•    Tool button can be added on browser for easier access
•    Uses color coding to highlight bad versus good links

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