^start of string
httpthe literal text http (case sensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case sensitive)
:the literal : (5810 / 728 / 3A16)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
Group 1(.*addons|au[0-9]) .*any character (except for line terminators), repeated any number of times
addonsthe literal text addons (case sensitive) authe literal text au (case sensitive) 0-9one character from 0 (4810) to 9 (5710)
\.the literal . (4610 / 568 / 2E16)
mozillathe literal text mozilla (case sensitive) \.the literal . (4610 / 568 / 2E16)
orgthe literal text org (case sensitive) netthe literal text net (case sensitive) comthe literal text com (case sensitive) \.*the literal . (4610 / 568 / 2E16) , repeated any number of times
g modifier: global. Finds all matches instead of stopping after the first