Sunday night the (on the fly) updated version of DownloadHelper was released. After just few days of malfunctioning all the features offered by this add-on for Firefox are back again.
In particular it is possible to download again all the videos to have a local copy to watch when we are not able to use the internet.
The team of DdownloadHelper was professional and fast to solve this annoying problem which was caused by changes operated by YouTube on its website. For all the people who has not already used this add-on before, I remind you that DownloadHelper is, in my opinion, the most advanced tool to navigate YouTube videos, download contents for evaluation and directly convert the format from flv to mp4 or other video format you prefer.
For the record, this problem caused the same malfunctioning to all the software with similar features. In particular, you could have problems when using Gmediafinder for Linux (at least we have had this kind of matter during the past weekend). 
Hey would you mind stating which blog platform you’re using? I’m planning to
start my own blog soon but I’m having a tough time deciding between BlogEngine/Wordpress/B2evolution and Drupal. The reason I ask is because your design and style seems different then most blogs and I’m looking for something unique.
P.S Apologies for being off-topic but I had to ask!
No problem! I use one free theme (Twenty Twelve) available on wordpress.com.
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