Only Pin Tabs are discarded

[happysurf]

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On my Firefox 58.0 - 64 bit on W10 the extension works only on pin tabs, the normal tabs remain untouched. The problem is present also manually by the context menu. In the browser console I have this error: [Exception... "Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIMessageSender.sendAsyncMessage]" nsresult: "0xc1f30001 (NS_ERROR_NOT_INITIALIZED)" location: "JS frame :: resource://gre/modules/ExtensionUtils.jsm :: sendAsyncMessage :: line 514" data: no] (unknown) Error: Could not establish connection. Receiving end does not exist. undefined

[rNeomy]

Try to inactive a tab and then use the "Discard this tab" from the tab's context menu. Does it work?

Have you refreshed your tabs after installing this extension? In Firefox you need to do that as it does not support initial script injection as far as I know.

[happysurf]

Doesn't' work on inactive tabs, only on pin tabs also after reloading all tabs. I have tested the extension on Nightly 59 and all seems works fine.

[ajvsol]

Finding the same issue, doesn't seem to discard all inactive tabs.

[rNeomy]

Seems like they have changed a few things before the FF58 release. There is nothing I can do! We need to wait for FF 59 release.

In the WebExtension platform, either an internal API works or there is literally no workaround