This makes laugh. They go through the trouble of making stupid videos about how to close the crashed tab while they should be really focusing on preventing a tab to crash. Isn't it so? You're re-inventing the wheel making another browser, why not fixing stuff that went wrong with the already available browsers?

If Google knows that ther are these problems then why didn;t they rectified this problem?

Why did they launched the problematic verison of the Chrome.