Cannot Comment on YouTube!

Yes YouTube has been facing what is many people calling a ‘glitch’ that one cannot comment on any video! On trying to comment they are getting a message of “Error, try again”.

AFAIK only people on ‘non-Google Chrome’ browsers are facing this problem like on Firefox. On Firefox an add-on called Download Helper is causing this problem for many and disabling this add-on solves it. How ever this doesn’t work for all and some have made comments work by disabling ALL add-ons-- that is far from being a solution.
Another solution that works for some people is to not use any special character like :, ), $, #, @, etc., in comment and use only alphanumeric characters. Funny how commenting on YouTube has become an “experiment”.

This does seem to have some connection to new features YouTube implemented recently on their website and apparently is an unintentional non-compatibility with browsers and extensions. It may also be some issue with Firefox (like page rendering and loading problems on AdSense and Twitter faced by some Firefox users).

Meanwhile, Firefox users can temporarily use Chrome or any other browser for these things.