Opera and Firefox Not Supported by Blogger
If you have an account registered with Blogger and recently you have tried of posting something you would be experiencing Problems.Specially with Opera and Firefox browsers a message will appear on top stating that your browser “is no longer supported by Blogger. Some parts of Blogger will not work and you may experience problems.” The message ends with Blogger suggesting to use Chrome instead.

Blogger recently announced they would only support Chrome, IE, Firefox and Safari.However people are also facing problems with Firefox.Lets see What these two browsers technical staff do about to fix these problems but for sure Google wants more and more bloggers to switch to Google Chrome..That’s the bottom line..Its also heard that Blogger will stop supporting Opera and Firefox starting from 1St August.