Hi,
We've been using the IETab addon for many years on Firefox ESR : https://addons.mozilla.org/fr/firefox/addon/ie-tab-2-ff-36/ [1] This addon also contains a plugin. We're perfectly aware that, as any Firefox plugin, it will stop working in Firefox RR>=53 and Firefox ESR>=59. But it's supposed to carry on working with Firefox ESR 52. The problem is that this plugin is now marked as "incompatible with Firefox 52.1.2", even if it seems to work perfectly fine (if already installed). But you're not able to reinstall it if removed. Why that? Some comments in addons.mozilla.org seem to indicate that it might simply come from the declared maxVersion in rdf. But, if I modify it, it breaks the extension signing, so Firefox refuses to install it. I tried to upload the modified module myself (to make it signed by Mozilla, even if I had to distribute it myself), but it refuses it because "Starting with Firefox 53, new extensions on this site can only be WebExtensions." The editor has dropped support for this plugin, so I'm stuck. The problem for us is that we expected to be able to use this plugin until ESR 59. Would there be any solution to do that? NB : we're deploying this addon through CCK2 Links: ------ [1] https://addons.mozilla.org/fr/firefox/addon/ie-tab-2-ff-36/
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