No sound from left headphone in browser

open up the mixer, click on the speaker icon in the lower right of the screen,
click mixer, check the level settings.
Open your audio software, and check all the settings...
Instead of clearing browser, try reload the computer audio drivers...

Double click the speaker icon in the lower right hand of the desktop, this will bring up the mixer, or single click to bring up the volume control.
But in case the volume is missing, corrupted, or the audio is otherwise non-functional:
you check whichever audio was installed:
click start, control panel, add remove programs, look at the list...
which audio software is shown on the list? delete it, restart the computer.

now visit the motherboard manufacturer or computer manufacturer's website
look up your computer drivers by model number
download the latest audio drivers, save on the desktop...
turn the antivirus off,
if you have multiple security programs installed, turn them all off
(your driver may not install if security systems are turned on)
now load your new audio driver, restart, turn the antivirus back on.

Didn't work. I have discovered that it is some issue with Adobe, I think. Not quite sure. Not sure if you read the whole thing, but I have logitech g930s, and it only happens with them, not any other audio devices. I believe it is a conflict with the logitech drivers and something else. I have tried reinstalling everything audio related, but to no avail. I do believe it has something to do with some update to something as of recently, because I found someone else that is having the same issue and it started at about the same time mine did. Thanks for the help though. Let me know if you have any other suggestions.