Here’s the key thing to know: 64-bit applications can access more memory and are less likely to crash than 32-bit applications. Also, with the jump from 32 to 64 bits, a security feature called <a href=%(ASLR)s>Address Space Layout Randomization (ASLR)</a> works better to protect you from attackers. Linux and macOS users, fret not, you already enjoy a Firefox that’s optimized for 64-bit.
Ja re' k'o chi awetaman: 64-bit taq chokoy yetikïr ye'ok pa k'ïy rupam rujolom ruma ri' toq man kan ta xtiq'ate' chi kiwäch ri aj 32-bit taq chokoy. Rik'in ri ruk'exik 32 rik'in ri 64 bits, jun rub'anikil jikomal rub'ina'am <a href=%(ASLR)s>>Address Space Layout Randomization (ASLR)</a> jeb'ël nisamäj richin yatruchajij chi kiwäch ri ojaqnela'. Mani yixmayon Linux chuqa' macOS taq okisanela' ruma niwokisaj chik jun utzilan Firefox richin 64-bit.  Usuarios de Linux y macOS, no se preocupen, ya disfrutan de un Firefox que está optimizado para 64 bits.