Quantum is a mess, a serious loss of functionality because it removes the rich, powerful suite of add-ons/tools. These tools were what made Firefox so popular among the tech literate and a go-to for tech companies that used browser add-ons to create internal tools. This is not just a complaint against change, I dearly hope you are listening and recognize what a disaster this is shaping up to be. The "speed difference" between modern browsers (non-mobile) is so negligible that it is meaningless... customization and the ability to use 3rd party privacy software are the hallmarks of tech literate users (which are and have been your base). Please do not disregard this, the 'upgrade' to Quantum smacks of executive level decisions that are badly out of touch with reality (or a dev team that is not equipped to handle a major release). If you abandon your users to chase Edge/Chrome users, you will simply cease to be relevant. Please revert or release a 'classic' version (with legacy add-on support) or this will be the end of Firefox. This is a product management level decision but Mozilla has no future against Edge/Chrome if this course is maintained. It is ironic that you are destroying your own market position, all but handing the big two the future. If this is the future of Firefox, I will make sure to recommend against Mozilla products in the future.