Html 5 firefox error

when i open my game in the firefox browser i get this error log

Error: uncaught exception: abort() at jsStackTrace@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:18192
stackTrace@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:18375
abort@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:174:78449
enlargeMemory@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:18708
Runtime.dynamicAlloc@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:7557
_sbrk@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:288314
MuR@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:113:1164456
processPackageData@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/MORELIA.data.js:142:17
runWithFS@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/MORELIA.data.js:158:9
callRuntimeCallbacks@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:20387
preRun@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:20948
run@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:174:77240
runCaller@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:174:76053
removeRunDependency@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:24520
Browser.asyncLoad/<@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:174678
xhr_onload@file:///C:/Users/Marquis/Desktop/HTML%20MORELIA/HTML5/UE4Game-HTML5-Shipping.js:1:174387

If this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.

as well as this

Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value 536870912, (2) compile with ALLOW_MEMORY_GROWTH which adjusts the size at runtime but prevents some optimizations, or (3) set Module.TOTAL_MEMORY before the program runs.

Got the same error after i made the mem file end with .js