No audio on Netflix (firefox)?

[Caleb]

I just switched from Chrome to Firefox a few days ago and so far it's been great, except for one problem with netflix

I can play audio on every other website (youtube, soundcloud, etc.) but not on netflix, even though the video plays fine.

I checked the volume mixer thinking that the volume must have been turned down for it, but these are the only things I see when netflix is playing:

http://puu.sh/6OvDW.png

Obviously nothing there is muted. The odd thing is, when the shows are playing the green bar under the volume slider for firefox moves as if there's actually sound, but I can't hear anything (no, this isn't a case of me not having my headphones unplugged lol).

Does anyone have any ideas of what I should try?
I've tried both of those and unfortunately they didn't fix it, thanks anyway though!

[Frisa]

This happened to me A LOT! If you want to fix it, it depends what kind of operating system you have.
If you have Windows: Enable Loudness Equalization: (Windows Vista, 7, and 8 only)

Click on the Start button.
Select Control Panel.
Click Sound.
If you do not see Sound, click Hardware and Sound, then click Sound.
On the Playback tab, click the Default Device (indicated by a green circle with a check mark inside).
Click Properties.
Select the Enhancements tab.
Check the box for Loudness Equalization.
Make sure Disable all sound effects is unchecked.
Click OK to close Speakers Properties, then click OK.

Clear the Silverlight temporary files on Windows XP:
Note: Clearing Silverlight temporary files is an advanced troubleshooting step. Try all other troubleshooting before resorting to deleting Silverlight temporary files.

Quit all open browsers - including this window! You may want to print the following steps.
Press and hold the Windows key and tap the letter R on the keyboard at the same time. This displays the Run window.
Type %userprofile% and select OK.
Open the Local Settings folder.
If you do not see the Local Settings folder, you may need to enable hidden files and folders:
Note: If you enable Show Hidden Files and Folders, make sure to change back to Do Not Show Hidden Files and Folders when you are through with the steps below.
Click Tools.
Click Folder Options.
Click the View tab.
Select Show Hidden Files and Folders.
Click OK.
Now open the Local Settings folder.
Open the Application Data folder.
Open the Microsoft folder.
Open the Silverlight folder.
Right Click on the is folder and choose Delete
Open your web browser and try to play a title again.

Clear the Silverlight temporary files on Windows 7/Vista

Quit all open browsers - including this window! You may want to print the following steps.
Press and hold the Windows key and tap the letter R on the keyboard at the same time. This displays the Run window.
Type %userprofile%/appdata and select OK.
Open the LocalLow folder.
Open the Microsoft folder.
Open the Silverlight folder.
Right-click on the is folder and select Delete.
Open a browser and try to play the title again.

Clear the Silverlight temporary files on Windows 8
Quit all open browsers - including this window! You may want to print the following steps.
Swipe in from the right edge of the screen, then tap Search. (If you're using a mouse, point to the lower-right corner of the screen, then click Search.)
Type %userprofile%/appdata and select OK.
Open the LocalLow folder.
Open the Microsoft folder.
Open the Silverlight folder.
Right Click or Press and Hold on the is folder and select Delete
Open a browser and try to play the title again.

They're kind of the same.

Mac:
Quit all open browsers - including this window! You may want to print the following steps.
Click the Finder icon in your Dock.
In the menu bar at the top of the screen, select Go.
Hold down the Option key on your keyboard and select Library.
Note: If Library is not listed, select Home and open the Library folder.
Open the Application Support folder.
Open the Microsoft folder.
Open the Silverlight folder.
Drag the is folder to the Trash
Open a web browser and play your movie or TV show again.

Hope this helped.