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Tragically unstable for me. Doesn't appear to be able to bind to a single firefox process. Couldn't stop it without closing my firefox processes. When I tried to stop it with firefox still open, it hung my firefox as well.

Breakpointing was good but loading pages with it enabled was very slow.

Это отзыв для предыдущей версии этого дополнения (0.9.87.4).