Google Chrome Wiki

Google Chrome is an Open source web browser developed by Google. It builds on components from other open source software, including WebKit and Mozilla, and is aimed at improving stability, speed and security with a simple and efficient user interface.[1] The name is derived from the graphical user interface frame, or “chrome”, of web browsers.

A beta version was released on September 2, 2008 in 43 languages. Mac OS X and Linux versions are under development and will follow the Windows version.[2][3][4]
Contents
[hide]

* 1 Announcement
* 2 Design
o 2.1 Security
o 2.2 Speed
o 2.3 Stability
o 2.4 User interface
* 3 Testing
* 4 References
* 5 External links

[edit] Announcement

The official announcement was scheduled for September 3, 2008 and was to be sent to journalists and bloggers with a Creative Commons Attribution Noncommercial No Derivative Works 2.5 licensed comic by Scott McCloud explaining the features of and motivations for the new browser.[5] Copies intended for Europe were shipped early and German blogger Philipp Lenssen of Google Blogoscoped[6] made a scanned copy of the 38-page comic available on his website after receiving it on September 1, 2008.[7] Google has since made the comic available on Google Books and their site[8] and referenced it on its official blog along with an explanation for the early release.[1]

[edit] Design

[edit] Security

Blacklists

Chrome periodically downloads updates of two blacklists (one for phishing and one for malware) and warns users when they attempt to visit a harmful site. This service is also made available for use by others via a free public API called “Google Safe Browsing API”. In the process of maintaining these blacklists, Google also notifies the owners of listed sites who may not be aware of the presence of the harmful software.[7]

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Sandboxing

Each tab in Chrome is sandboxed to “prevent malware from installing itself” or “using what happens in one tab to affect what happens in another”. Following the principle of least privilege, each process is stripped of its rights and can compute but can’t write files or read from sensitive areas (eg documents, desktop), this is similar to “Protected Mode” that is used by Internet Explorer 7 on Windows Vista. The Sandbox Team is said to have “taken this existing process boundary and made it into a jail”; for example malicious software running in one tab is unable to sniff credit card numbers, interact with the mouse or tell “Windows to run an executable on start-up” and will be terminated when the tab is closed. This enforces a simple computer security model whereby there are two levels of multilevel security (user and sandbox) and the sandbox can only respond to communication requests initiated by the user.[7]

Plugins

Plugins such as Adobe Flash Player are typically not standardised and as such cannot be sandboxed like tabs. These often need to run at or above the security level of the browser itself. To reduce exposure to attack, plugins are run in separate processes that communicate with the renderer, itself operating at “very low privileges” in dedicated per-tab processes. Plugins will need to be modified to operate within this software architecture while following the principle of least privilege.[7]

Incognito

Chrome includes an Incognito mode (similar to Safari’s Private Browsing and Internet Explorer 8′s InPrivate) which “lets you browse the web in complete privacy because it doesn

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