- General notes
- AdblockPlus.org website
- Adblock Plus extension
- Element Hiding Helper extension
All requests to the AdblockPlus.org website are recorded in the website logs. The data stored includes your IP address, time of the request, the web address accessed, the browser identifier and the referring page. This data is used to generate usage statistics as well as to investigate potential security issues and forum/blog spam. The detailed logs are retained for a period of 30 days after which only the aggregated usage statistics remain.
Stored IP addresses
The web applications installed on AdblockPlus.org store your IP address when you create a forum post, add a blog comment or translate a page. This allows administrators to address spam content and security breaches effectively. All stored IP addresses are removed after 30 days.
Data entered during forum registration is used to form user's public profile and is therefore visible to other forum visitors. There are two exceptions:
- Passwords go through one-way encryption before being stored on the server. This means that they cannot be recovered by anybody, even with access to the database.
- Email addresses are only displayed in the public profile if explicitly agreed to. By default they are only used for the sending of notifications you subscribed to.
Registration is not required to participate in the forums.
When a comment is added on the Adblock Plus blog an email address can optionally be specified. Unlike the other fields it is never displayed and is only used to notify the comment author about replies.
Adblock Plus extension
Extension update checks
This feature was introduced in Adblock Plus 1.3 and allows you to send issue reports to be temporarily stored on AdblockPlus.org domain. These reports contain information required to investigate the issue including Adblock Plus version, browser version, address of the web page where the problem is visible, blockable items on this web page, matching filters and active subscriptions. Parameter values are removed from all transmitted addresses to avoid unintentionally leaking private information. It is also possible to provide additional information, which may be privacy-sensitive:
- Website screenshot provides a scaled-down and color-reduced version of the page viewed. It is possible to remove particularly sensitive sections of the page before the report is sent.
- Email address is only used to request more information on the issue.
- List of installed extensions is necessary for the investigation of conflicts with other extensions.
The processed reports can only be accessed by somebody who knows their unique address. These addresses are only shared with the maintainers of the filter subscriptions mentioned in the report and are unlikely to be found by others unless a link is provided. All reports and their associated data are automatically removed after 30 days.
Further AdblockPlus.org website requests
Adblock Plus stores some data in the Firefox profile on your computer. Adblock Plus never transmits this data to any servers, but other extensions and services, such as Firefox Sync, may do so. Most of the data (your preferences, filter subscriptions and custom filters) is unobjectionable privacy-wise. However, filter hit statistics and recent issue reports could be used to reconstruct your browsing history. Adblock Plus treats this information identically to how history data is treated by the browser: this data isn't stored if you are using Private Browsing mode and is removed if you choose to clear your browsing history.
Element Hiding Helper extension
Extension update checks