Works Great! Rated 5 out of 5 stars

But to get it to work I had a few issues.
Firstly, if a Flash Plugin is installed, it wouldn't work.
Only after I uninstalled Flash Player and added a blocking rule of: *.swf to my adblocker to block all flash files from attempting to load, this addon then started working and boy does it works well!

While some videos on some sites still wont play with this add-on, a LOT more do play than before.
Five stars worthy? Oh yes.

This user has a previous review of this add-on.

Forget this add in Rated 1 out of 5 stars

Doesn't work in firefox it won't work at all.

Rated 1 out of 5 stars

This add-on doesn't work. Even cannot find it in the add-on list after installation.

Doesn't work. Rated 1 out of 5 stars

This addon doesn't work.

Not works! Rated 1 out of 5 stars

Not works with many sites!
Even xvideos.com... saddly...

Rated 5 out of 5 stars

working great

not working Rated 1 out of 5 stars

not working.....

does nothing Rated 1 out of 5 stars

doesn't work...

does not work Rated 1 out of 5 stars

does not work.

Rated 4 out of 5 stars

In fact I was searching for a way to block jwplayer used to force me to see some advertising videos by some sites.
Please give some way to contact you e.g. on your site. (may be useful for future employer,unfortunately not my case !)

Rated 5 out of 5 stars

Works just great for me.
Thanks for this addon, much appreciated and well needed.

This review is for a previous version of the add-on (3.1.1.1-signed). 

Rated 1 out of 5 stars

Doesn't work, I still can't see videos on my tablet that require flash.

This review is for a previous version of the add-on (3.1.1.1-signed). 

Rated 1 out of 5 stars

Horribly laggy and buggy. Like anything HTML5 attempts to take over. That this awful thing was featured, only shows bias from Mozilla.

This review is for a previous version of the add-on (3.1.1.1-signed).  This user has a previous review of this add-on.

The lag of your browser (for watching videos or posting "reviews" twice) is of no concern for this extension. using an analytical approach as soon as you can fetch the video source the job of this extension is done.

Worked for me..! Rated 5 out of 5 stars

I wanted to uninstall flash for security reasons. Works like a charm thank you..!

This review is for a previous version of the add-on (3.1.1.1-signed). 

what's up ??? Rated 1 out of 5 stars

Does not work, Black screens and when, or if plays it really makes the Videos Lag... Stops and starts, stops and starts, on
and it an on - no fluidity in any videos...

This review is for a previous version of the add-on (3.1.1.1-signed). 

Hi, this addon is not a video player, be sure to read the description.
If you have trouble with firefox HTML5 video backend, try to select a lower video quality or check you video driver. Alternatively you can wait that the video is loaded or even download it.

Don't work Rated 1 out of 5 stars

https://www.youtube.com/watch?v=D8-g8CpXdO8&index=8&list=TLpAFEDBJwm7E
Don't work this. Nothing else like a black screen. With Flash player work ok. On Android 4.2.2 Rk hdmi stiktv

This review is for a previous version of the add-on (3.1.1.1-signed). 

I thought it was clear enough that youtube is not supported by this addon, so I updated the listing information.

Rated 1 out of 5 stars

Does NOTHING. "Rating" needs zero or less.

This review is for a previous version of the add-on (3.1.1.1-signed). 

Rated 1 out of 5 stars

Seems good but doesn't work at all. Using 37.0.2 version of FF.

This review is for a previous version of the add-on (3.1.1.1-signed). 

You can provide the video web site or the page with the video and I will check this out.

Updated: April 14, 2015 Rated 5 out of 5 stars

After using the latest version (3.1.1) my review has now changed.
While the problem that I am having is similar it is not at the fault of the addon.

Blip itself is just a terrible company, and so if it detects something changing its player then it now replaces the video with a warning:
"This video is only available in the Blip player.

Search Blip.com or your favorite search engine for viable alternatives.

For proper embedding go to http://bit.ly/blipembed."

So, my rating has now changed with the addon since it does change out blip's player correctly, but Blip is apparently trying to prevent anything from replacing its old and clunky player.

Edit - April 20:
Only problem with using a user agent switcher is that the quality of the video cannot be changed when switching to a mobile user agent. So, the quality is extremely low since it's being scaled for a much smaller screen.

This review is for a previous version of the add-on (2.0.2.1-signed). 

works on my computer with the latest version.

I did some research about this blip error. You need to change your firefox's user agent as an android device or itune and it works !

Extract From:
http://smartypants.com/blogs/index.php/2014/02/23/blip-tv-worst-video-player-ever/

"It turns out that Blip deliberately blocks desktop web browsers from using the HTMl5 player, even if they’re perfectly capable of using it. In fact, if you modify your browser’s “user agent” to make Blip think you’re running iOS or Android, the HTML5 works perfectly in desktop browsers. That’s in contrast with youtube, where there’s an option to use the HTML5 player – the Flash player is still the default, but at least the option is available."

Stopped Working on Youtube with FF 36.0.4 Rated 1 out of 5 stars

This add-on solved my problem of Firefox crashing all the time when trying to play videos. But, after installing update 36.0.4 then Youtube videos would gray out and an "undefined undefined" message would appear. I disabled Video Without flash and now Youtube videos play again.

This review is for a previous version of the add-on (2.0.2.1-signed).