Dom Diff
Dom Diff is a Firefox plugin based on the plugin PageDiff by Khadir Abdul.
Dom Diff compares 2 web pages and shows the differences between 2 pages. It helps web developers and designers to see HTML-structure differences between web pages. It doesn't take original page source. It takes browser generated DOM and omits text in between HMLT-tags and some HTML-attribute values ( for example scr="../this/value/gets/removed.jpg" ).
Use the download link to save a copy of the extension to your local file system or directly install the application directly in your Firefox browser.
After installation, to use this, one has to
1. Right click on a page & select 'Start DIFF' (this action saves the current page to memory),
2. Go to the page which one wants to compare (with the saved one) and
3. Right click on the page & select 'Show DIFF'

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