How do you turn of vibration when Facbook notifications are activated?

I have been using the new version (8) of Opera mini for Android for several days and must say it's not as easy to use as the pevious version Is there any way to keep any improvements 'under the hood' of the new version but provide the option to use the old user interface as it looks less bland, has less glaring white space (therefore using less battery power to display, being darker) and speed dial icons, refresh button etc. are bigger and easier to select on my Samsung Galaxy Ace and galaxy Ace 2 phones which do not have the huge screens of the more expensive models. Also Is there anyway to remove the bookmarks and saved pages icons from speed dial? Tried deleting them but seems you can only shuffle them around the screen. Over all, version 7 interface seems far more comfortable and efficient to use and looks more appealing (the move of developers to the glaring white space, flat blandness and cluttered web 2.0 page design look of the windows 8 and 10 models has not been an improvement in my opinion. Makes everything look like it is reverting to the early 1990's. The new BBC news website for desktop, for exampl,e looks like a disaster of a design as they attempt to provide a 'one size fits all' reactive design for all platforms). I have both Opera mini versions on my phone but will continue to use 7 until 8 improves look, usability and becomes more efficient in terms of number of clicks. I hope Opera 7 mini will stiil receive any security updates as they become available and it may be an idea to make it available on the Play store allowing people to revert to it who may have deleted it from their phone. Please also advise as to how I remove the 'Opera mini 8 is now available' reminder nag from version 7 permanently and not just 'remind me later'.

Thanks for your reply, please elaborate how you do this. There doesn't apear to be a setting in the menu for Opera.

Comodo programme manager just flagged up that Opera had updated without my permission. This is not on. I do not wish Opera to update without my knowledge. Anyone know how set Opera for Windows to only update when I choose to? If this is not possible then it's bye bye Opera.

I have the following CSS code in a stylesheet for a web site.

p a {
color: #356618;
}
p a:hover {
color: #66a143;
}

It is to change the colour of a link when you hover over it with the mouse. However this works correctly in both Internet Explorer 11.0 and Firefox 31.0 but not in Opera 23.0. Can anyone advise me as to obtain this effect for Opera 23.0? Thanks.