I'm on Linuxmint sonya and when I go on youtube my videos play slow... like not matching whats being spoken!
 

I tried different ways but no luck! Heres my info can anyone tell me why I am having problems with playing youtube videos. they lag and glitch and its annoying!
Dual core Intel Celeron N2840 (-MCP-) cache: 1024 KB
clock speeds: max: 2582 MHz 1: 2582 MHz 2: 2582 MHz
CPU Flags: 3dnowprefetch acpi aperfmperf apic arat arch_perfmon bts
clflush cmov constant_tsc cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept
erms est flexpriority fpu fxsr ht ida lahf_lm lm mca mce mmx monitor
movbe msr mtrr nonstop_tsc nopl nx pae pat pbe pclmulqdq pdcm pebs pge
pni popcnt pse pse36 rdrand rdtscp rep_good sep smep ss sse sse2
sse4_1 sse4_2 ssse3 syscall tm tm2 tpr_shadow tsc tsc_adjust
tsc_deadline_timer vme vmx vnmi vpid xtopology xtpr

Hello and Welcome to LQ!

We'll need some more sysinfo using inxi, so open a terminal and issue
and paste the resulting url link here in your reply.

"Browser" is Firefox, by default. Is that what we're yakking about here?
Version?

Thanks!

Hi, Mr Franklin, and welcome to LQ.

How much RAM have you got in there?

Also, which video card do you have?

There's a possibility that your system may be a bit underpowered to run Cinnamon.

Edit: Oops, Habitual got in there before me...

Youtube has got much more demanding recently, and HTML5 is worse than Flash in this respect. You've got two things running that use a lot of graphics processing: Firefox and Cinnamon. Just try installing Mate and switching to it at log-in and see if that helps.

most likely your machine hasn't enough oomph, or graphical hardware acceleration is unavailable, or both.
for the gpu, please post the output of (although it's possible that the inxi ouput provides the same info).

other than that, don't use youtube directly but use mpv & youtube-dl. hey, there's even a firefox addon!

edit:
oops, cinnamon on an old celeron... no, no. lightweight you must go. MATE is good.