I really appreciate your work! In fact, I just switched from firefox esr 52 to quantum 60 and I was in a loss when I found vimperator is no longer supported in newest versions of firefox. Finally I got a satisfactory alternative from your kind work. Thanks a lot! This is the reason why I use firefox (Vimium is just not that costomized!). Pitifully I do not have a valid Paypal account (not properlly supported in China), but please accept my simcere gratitute to you!