Description: "A portable version of Firefox with a well integrated Tor engine that uses the free Tor network. It's easy to setup and doesn't require advanced knowledge, but you will have to use it as a second browser for anonymous surfing in contrast to Vidalia or JonDo that also support normal browsing." (Creates an empty folder in the user profile.)
The drawback to xB Browser is that it's browser specific to Firefox. Users who prefer to use a different browser, can try JonDo. JonDo works with other browsers, but you may have to follow guides to get all the settings right. But JonDo also recommends a Firefox solution:
Another option is to use a Portable Firefox with the JonDo-Portable service and the JonDoFox configuration. The advantage is that the JonDoFox configuration comes with many other specially selected security addons (NoScript, CS-Lite, Adblock Plus), installs as an alternate profile (allowing you to switch between normal and anonymizing profiles), and allows proxy switching between the Tor or JonDo anonymizing networks. However, the JonDo-Portable service requires Java and is more resource intensive.
Description: The best security practice is to prevent malware from infecting your system before you have to cure it (before you have to worry about trying to remove some tricky rootkit), and no security setup is 100% sound. So site advisors like WOT or LinkExtend help flag sites with poor reputations and help you avoid them altogether. WOT even has a warning and blocking screen to stop you from interacting with malicious sites.
Adblock Plus gets a lot of recognition for blocking ads and cleaning up your surfing experience (for good reason, of course), but it also allows you to subscribe to many other filters to help avoid malware domains or to protect your privacy (see the Malware Domains & EasyList/EasyPrivacy filters, for example).
Last but not least, I suggest a password manager (such as LastPass, my choice as of now) to avoid having to enter passwords or forms (opening yourself to keyloggers). Before you ask, KeyScrambler isn't portable!
Most of these are so popular that they work on multiple browsers, but a few require Firefox, such as NoScript and Adblock Plus (but its filter subscriptions can be used with Chromium browsers). But other browsers have alternatives to these that afford similar protection.
It's not an addon/extension, but you can further protect your portable browser with DropMyRights. You can create a "safe icon" for your portable browser(s) and add DropMyRights to your portable folder. See this guide by Gizmo for the general idea of how DropMyRights works.
Related Guide: How to Improve Security When Using a Public Terminal
Description: ClamWin is a popular choice for portable malware scanning; it makes the top spot here mainly for lack of competition from truly portable apps! In any case, it scans for both viruses and spyware. But it won't provide real time protection, and it doesn't have scheduling or program updating in the portable version. It allows you to update the database with the newest threats any time you want , but dialup users will have great difficulty getting them initially, if they are patient enough to get them at all (it took me a morning while surfing around doing other stuff!). Verified TruPortable.
Be sure to upload any newly downloaded or suspicious files to an online multi-scanner such as Virustotal or Jotti before copying them to your flash drive and use ClamWin for regular scanning. Additionally, I suggest periodic scanning with your regular antivirus and antispyware software when you can. Many of the best antivirus and antispyware scanners/removers must be installed.
General Tips: Safe Portable App-ing
Additional Portable Apps for Anti-Malware Removal
- SUPERAntiSpyware: www.superantispyware.com/portablescanner.html
- Bootable CD/DVD: Avira Rescue
- Manual Inspection Tools (advanced): GMER | a-squared HiJackFree (Writes settings to registry)
- Related Guides/Lists: Probably the Best Security List in the World | Spyware Removal Guide
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