Related to: https://bugzilla.mozilla.org/show_bug.cgi?id=1296921 https://transvision.mozfr.org/?recherche=browser%2Fchrome%2Foverrides%2FnetError.dtd%3AdnsNotFound.longDesc&repo=release&sourcelocale=en-US&locale=fr&search_type=entities&perfect_match=perfect_match The source string should be "Internet" instead of "Web", because for example, the protocol FTP is not part of the Web, and this message appears for this protocol.
(In reply to 21Naown from comment #0) > the protocol FTP is not part of the Web If it wasn't, we would have removed it from Firefox by now, as we've done with gopher support. Unfortunately, http(s) webpages somewhat routinely include or link to resources retrieved over FTP. I think the phrasing here was deliberate, and has been here for over 10 years (!), as part of bug https://bugzilla.mozilla.org/show_bug.cgi?id=301208 and friends. So, closing as wontfix. If you feel very very strongly this decision is wrong, consider emailing firefox-dev ( https://wiki.mozilla.org/Firefox/firefox-dev ).
When you wrote your comment, I sent a message to firefox-dev. Ignored until now because I sent it again and the results are "it is not the right place" + "minor problem". Well. The definition and comparison about Web and Internet are still the same since this bug report, FTP is not part of the Web but of the Internet. To change only a single word, it will not take long, and there is no reason to think about "it is a good choice or not?" since this word is covered by a definition. In addition, many sites explain the differences. Also, I checked your link, the word "internet" is non-existent, so at least here there is no questioning about this. But it should not even have questioning about this.