Firefox has the same problem with V3, it has nothing to do with the browser, adblocker V2 will stop working, because are the advertising companies wich will use V3 scripts. For Chrome and Chromium the only thing is, that are no more V2 adblocker in the Chrome Store and installed adblock extensions won’t work anymore. after June 24. But don’t panic, the fact that adblocker V2 stops working does not exclude that there will be adblocker V3, the devs of these are not going to rest on their laurels either.