This is nice to hear. I use Firefox as my default browser with the tree-style tabs add-on, and just yesterday I replaced ABP with uBlock and Ghostery with Disco

This is nice to hear. I use Firefox as my default browser with the tree-style tabs add-on, and just yesterday I replaced ABP with uBlock and Ghostery with Disconnect out of frustration with how slow things were going (~30-50 tabs open). The slow startup time hasn't been helping (come on, its not even loading the tabs until I click them, what's taking so long?)