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Useful tool for developers Rated 5 out of 5 stars
This Extension, in addition to fine-tuning tab and URLbar behavior, can show encoded CITEs, TITLEs, LONG DESCriptions, SouRCes, ACTIONs, DATA, Hyperlink REFerences, &c., for elements on any HTML Page. The included View Source button can address this Extension's settings directly, via its drop-down menu. Pop-up appearance may take some getting used to for new users of this Extension, but this Extension works essentially as advertised.
(I am concurrently using the Gomita Extension Vertical Toolbar, and the Michael B. Extension Toolbar Buttons, for buttons to control functions not directly accessible from the menu structure and/or App Menu button even with the Merci chao Extension Personal Menu installed, and placed the Online/Offline button from this Extension on the side toolbar.)