Google Toolbar often distributed through product bundling with a primary download. Google Sidewiki was launched on September 23, 2009, allowing users to make comments, which are visible to the public, on any web page. Google uses ranking algorithms to determine comment relevancy and usefulness using criteria such as users voting up and down a comment and past contributions. Sidewiki is currently available for Internet Explorer and Firefox through Google Toolbar, the Google Chrome browser through an add-on, and for other browsers, like Safari, it is available as a bookmarklet. Web site owners cannot control Sidewiki comments, and there is currently no way
History of the Opera web browser default user interface was cleaned up and simplified. The default home page was an improved search portal. The changes displeased a number of existing users since some advanced settings became hidden. Version 8.0 introduced support for Scalable Vector Graphics (SVG) 1.1 Tiny. This marked the first major web browser to natively support some form of SVG. Version 8.5 was released on September 20, 2005. Opera announced that their browser would be available free of charge and without advertisements, although the company still continued to sell support contracts. Enhancements included automatic client-side fixing of web sites that did not render correctly,