Rated 2 out of 5 stars

-2: Not worked when JavaScript disabled (so, when I trying increase security by disabling JS, your extension decrease my security by enabling Flash ads).
-1: Latest update not installed on FF 3.6.17 because "download error" (but other extensions updated without problems). The error message:
-------------
Firefox could not install the file at
http://releases.mozilla.org/pub/mozilla.org/addons/433/flashblock-1.5.15-fx.xpi
because: Download error
-228
----------------

This review is for a previous version of the add-on (1.5.15.1). 

Rated 3 out of 5 stars

Latest versions not correctly work with YouTube on my FireFox 3.6.8. Symptoms are (when FlashBlock is enabled): youtube's page loaded and I see an empty rectangle with the play button, I click it to play flash... after that I again see the empty rectangle with the play button, and again click it to play a video.... and, finally, I see a black rectangle and no video played. On the other websites to play video I need to click the "play" button two times too, but video played after that. What happened with FlashBlock?
1) Why I need to click twise?
2) Why a youtube video not played when FlashBloack enabled?
(Greasemonkey was disabled)

This review is for a previous version of the add-on (1.5.14.2).