I've been using this addon for long time. Its really a wonderful addon, work like charm and very helpful.

Lately this addon is so slow in firefox (i'm using firefox 61.0.2). I don't have any problem in chrome. Work flawless in chrome. I've already reinstall the addon and try to use by disabling all my other addons, but still it's soo slow when deleting the email or even just open the options. My CPU will spike to 40% when deleting an email or open the options (from addon burger menu).