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It wasn't enabled for users who had any old extensions installed.
by pornel 9y ago
It wasn't enabled for users who had any old extensions installed.
- noisem4ker 9y ago"Legacy" addons could be made compatible with the newer multiprocess design. See: https://developer.mozilla.org/en-US/Add-ons/Working_with_multiprocess_Firefox$revision/993443 https://developer.mozilla.org/en-US/Add-ons/Working_with_mul... Many developers went through the effort only to see support for their addons scrapped altogether a couple months later. Fortunately, that was quick enough for Mozilla to sweep under the "legacy extensions are unfixable and unmaintainable" rug.