Opera 5 is a web browser developed by Opera Software ASA, available for download in full install version for Windows platforms from legacy sources. This version of Opera was officially released on 2000-12-06 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Opera 5 has been release now and there are about 5 builds from its first version 5.0 released on 06-Dec-2000 to the final edition 5.12 released as late as on 27-Jun-2001 spanning seven months.

Among the changes in this edition important one include Multiple Windows Support, Zooming without quality loss, Speed & Memory optimization, Email importing, Standards and Improved JavaScript Support , etc.

Opera's commitment to Word Wide Web Consortium's standard compliance lead to this edition in compliance with 128 Bit encryption, TLS 1.0, SSL 3, HTML 4.01 and new support for DOM/DHTML and WAP/XML protocols.

This edition is tiny and downloaded in seconds with file size being just 2.19 MB and you can browse faster than ever. As on today Opera is the fastest web browser available in market. 

You can still browse faster by avoiding downloading of images through toggling of image/document settings.  Unlike Internet explorer, Opera can open multiple tabs inside the window thus giving more space for your Windows taskbar.