It's freaking gpl! For those people who don't know it's a special license for software that shows that the developers respect the user and reveal how the program works, so no shady business, which is especially valuable for cryptographic software. I pay only for gpl or gpl-compatible software. Others do not deserve my money because they treat me like garbage and I return the favor. The only hope of mine is that BW will stay gpl... not like EBOOKDROID which became proprietary shite all of sudden. In addition to the license the BW addon is superb! It doesn't slow down my browser and works in the newest versions of firefox (57-compatible and above) and in chromium! It also has a sleek and convenient interface. Nice job, BW!