Opera complies with standards Using Opera, you know that your pages are best viewed on any browser. Opera for Mac is a tiny 2.2 MB download, so updating to the latest version is always fast and easy. Using Opera as a disabled user means being able to access the Net quickly and efficiently. Only Opera makes it possible to navigate entirely with the keyboard, to the great pleasure of our thousands of visually or physically disabled users worldwide. Opera features a special download window with your download items listed.
Opera is flexible - Choose whether to show menus, buttons, scroll bars, progress information etc.
If you don't like the UI gadgetry, you can turn it off. If you don't like cookies or referrer logging, frames or multimedia, or if it's just Javascript, one click turns them off. If you'd like to customize the look and feel of your toolbar, no problem at all. Opera is customization friendly, so you can see the Internet the way YOU want and not the way the designer envisaged. Support for wbmp, png without alpha transparency channels, gif, jpeg, bmp, xbm, animated gif, and transparent gif formats.