This also appears in the console if helpful: `Assertion failure: false (Should not receive non-decodable data), at /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSActorManager.cpp:161`
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This also appears in the console if helpful: `Assertion failure: false (Should not receive non-decodable data), at /builds/worker/checkouts/gecko/dom/ipc/jsactor/JSActorManager.cpp:161` It appears to be the `result-get-matched-err` test, it triggers the slow page warning and the tab will crash if you don't do anything about the slow script warning. Even if you do click `Stop It` the tab will likely crash. Whilst the browser "hangs" memory use eventually reaches 100% at which point the tab crashes? Last image seen before the tab crashed: https://i.imgur.com/7e4dfhs.png