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Bookmarks Toolbar Folder

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Web Standards Investigation Toolbox

WSIT

JS shell
Opens a JavaScript Shell and allows it to access the current page.
modi2
Hover any element to learn about attributes, children and ancestors.
pageInfo[frame_no]
Page info key numbers on content/markup ratio, etc.
pageInfo (orig)
Page info key numbers on content/markup ratio, etc.
#elements
Total number of elements in DOM
#img
Total number of image elements on page
#table
Total number of table elements
Table number rows
Numbers each table row
DOM generated source
Displays the current DOM tree of the page as HTML
JS variables
Displays all JavaScript variables and functions.
Favelet Suite
Collection of handy webdev bookmarlets
Justaddwater.dk: Toolbox to Locate problems in HTML pages