Vivaldi has an interesting history. The company behind it, Vivaldi Technologies, was founded by Jon Stephenson von Tetzchner, co-founder of Opera Software. The browser is aimed at the more technologically skilled user and is therefore highly customizable.
Vivaldi provides a full explanation of its philosophy of user privacy on the Privacy page in the About section. There you can not only read how it handles these problems in its browser, but also other problems, such as what type of analysis it uses on its own websites and how it handles privacy issues in its community pages.
DEAL WITH TRACKERS
As expected, given the emphasis on user customization, Vivaldi offers a number of privacy-enhancing tools and functions, many of which can be found on the Privacy page in the Settings.
We have included instructions on how Vivaldi can block and delete first-party cookies (which are primarily used to remember login information and what's in your shopping cart), as well as tracking cookies from third parties (used by advertisers) and other parties to follow your online activity). We also look at what protection Vivaldi has against a form of tracking that is even harder to prevent: fingerprints, which collect information about your device's configuration to track individual users.
CUSTOMIZE YOUR TRACKING SETTINGS
you start by going to the Vivaldi Settings page (accessible via a gear at the bottom of the menu on the left). Then click on & # 39; Privacy & # 39 ;, which is also in the menu on the left. You can then adjust your various privacy functions by checking or unchecking a number of boxes.
Vivaldi does not block tracking cookies by default, but you can adjust your settings to do this.
- Go to "Settings"> "Privacy"
- Scroll down to "Cookies" (in the main window). Under "Third-party cookies" enable the "Block third-party cookies" option.
- In addition, it says "Accept cookies, where you can choose the parameters for allowing first-party cookies by selecting" All "," Session only ", & # 39; Or & # 39; Never & # 39;
You can discover which cookies are blocked on a specific site, although the process is a small roundabout.
- While browsing, look for the two-arrow icon on the right side of the address bar and click to see how many
- If you click on "Manage cookies", you will be taken to the same "Privacy" page mentioned above. Scroll down to "Saved cookies."
- Click on "Show saved cookies" to view the websites see where the cookies came from Click on the site name and the item will open to show you all the cookies it has left in your browser Move over the site entry and a & # 39; X & # 39; will appear on Click on the right to remove all cookies from that site.  If you click on the name of an individual cookie, the name of this cookie is highlighted and you can see details about that cookie, including the expiration date. Click on the "X" to remove it.
- You can delete all cookies stored by Vivaldi by clicking on "Delete all cookies".
Although there is no check to delete all cookies when you close Vivaldi, you can delete your browsing history after each session.
- Go to "Settings"> "Privacy"> "Save browsing history"  Click on the drop-down menu and select "Session only". Please note that you must restart the browser for the change to take effect.
FINGERPRINT AND AD BLOCKING
Vivaldi automatically blocks what it considers malicious ads, such as ads that mislead users, contain malware, create fake system messages, automatically redirect you, or attempt to steal your information. If you want to make sure that this function is active:
- Go to "Settings"> "Privacy"
- Make sure that under "Block content" the check box next to "Block ads on offensive sites" is checked
Any other advertisements should be blocked via an extension.
Vivaldi has no specific functions to protect against fingerprints. In a 2018 blog article, team member Tarquin Wilton-Jones states that “the way to prevent fingerprints or make it harder is not to change the settings. It is to remain as normal and normal as possible so that your browser appears like everyone else's. "The mention further states that Vivaldi" makes it difficult for websites to make fingerprints by imposing restrictions on the battery API and placing few details in the UA series. "
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