Extensions Firefox SEO
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Web Developer
The Web Developer extension adds various web developer tools to a browser. The extension is available for Firefox and Chrome , and will run on any platform that these browsers support including Windows, OS X and Linux.HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing. The details of the errors are seen when looking the HTML source of the page.
Html Validator for Firefox and Mozilla
Wikipedia Lookup Add-on :: Add-ons for Firefox
The current version only has support for the languages with 10000+ articles in Wikipedia. I will add support for all languages in the next major release of the extension. The next release will also include some other new features that people have mentioned in the comments. If you want to try out theses features now, have a look at the development blog.
The Yellowpipe RightLynx tool is an addition to the right-click menu for Firefox and Windows Internet Explorer 6.x, allowing you to preview the page you are on with our Lynx Viewer. With just one click, and without living the page (RightLynx opens in a new, small window) you can see what what a page will look like when viewed with Lynx , a text-mode web browser. It is also presumably, how search engines see your site.
RightLynx Lynx Preview Tool
Flagfox
Flagfox is an extension that displays a flag icon indicating the current webserver's physical location. Knowing where you're connected to adds an extra layer of awareness to your browsing and can be useful to indicate the native languages and legal jurisdictions that may apply. Additional information can be obtained via a multitude of external lookups and users can add their own custom actions.
SEO Link Analysis Firefox Extension
Link data in Google Webmaster Tools, Yahoo! Site Explorer and Microsoft's Webmaster Portal is pretty static, they give you the pages a site has links on, and let you do all the analysis with other tools. That sucks if you want to do a quick analysis of a site, or want to get a quick overview of inbound anchor texts for a site. This Firefox extension gives you a bit more information when opening such pages, it gathers the PageRank for the linking page, the anchor text used on the link, and checks whether the link is nofollowed or not. Genius hacks together code to unlock the link details Google and Yahoo refused to show the common webmaster. And makes it available free to the masses.Rank Checker - Track Google, Yahoo! Search, & Bing Rankings Free
Set up your free SEO Book account , and you will get this tool + 2 other SEO tools valued at over $300 for free. Already have an account? Log in and your installation link will appear in the place of this message. Why do Over 500,000 Webmasters Use Rank Checker? Want to know where your website ranks in the search results? Our Firefox Rank Checker extension allows you to easily check your website rankings in Google (US and international), Microsoft's Bing, & Yahoo Search.
To get the best results out of Google Analytics, you need to ensure it’s installed on each page of a website. To automatically check for you, I’ve created a Firefox extension to do all the work. GA? will put a little icon in the status bar of your Firefox web browser.
Is Google Analytics Installed? – GA? Firefox Extension - Blog on