"tel" telephonic Content Type missing from Applications list
Issue 1305652 (https://support.mozilla.org/en-US/questions/1305652) stated that I could have a link with the "tel:" protocol acted upon by FF by specifying an action for the "tel" content type in the Settings/Application section. That content type is MISSING (I am running FF 98.0.2. Has this type been removed? If so, is it back in 99.0, or, if not, can I add it with another setting (ie., are content types hardwired or setting-defined). I don't want to install an add-on just for this capability. Thank you for your help.
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It is a new file type to me. The procedure in the following link may work.
Terry, That is of no help at all. "tel:" is NOT a filetype, it is a Protocol like "mailto:". It has been around since the earliest days of HTML; in fact, it is documented in Mozilla's own MDN web doc on HTML anchor elements (see "https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a "). New filetypes and handlers for them can be added as you suggest, but protocols must be defined by Firefox. The "mailto" protocol is present in the Application types list, but "tel" and "callto" are NOT.
Also note: those considering the history of "tel:" and "callto:" support in browsers (and lacks thereof) can refer to this aged StackOverflow issue and discussion: https://stackoverflow.com/questions/1164004/how-to-mark-up-phone-numbers