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UserScripts (Tampermonkey, Greasemonkey etc) on Sidebar Extensions

  • I would like to run my userscripts on sidebar messengers (whatsapp, twitter, messenger).

    Tampermonkey can run my scripts in the current tab but not on the left sidebar messengers.

    Is there a solution for this?

    This is not only limited with Tampermonkey as well. Other extensions are also not running in those sidebar messengers.

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