- General notes
- AdblockPlus.org website
- Adblock Plus extensions
- Adblock Browser for iOS
- Element Hiding Helper extension
- Email collection
All requests to the AdblockPlus.org website are recorded in the website logs. Data stored includes your IP address, the time at which the request was made, 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 or blog spam. Detailed logs are retained for a period of 30 days, after which only the aggregated usage statistics remain.
Uninstallation page feedback
After uninstalling Adblock Plus, you may be directed to a webpage that asks for your feedback. The webpage stores some application and platform related data anonymously. If you decide to submit feedback, we will also store it anonymously.
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 effectively address spam content and security breaches. All stored IP addresses are removed after 30 days.
Data entered during forum registration is used to form the user's public profile and is therefore visible to other forum visitors.
There are two exceptions:
- Passwords go through one-way encryption before they are stored on the server. This means that they cannot be recovered by anyone, 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 to which you subscribed.
Registration is not required to participate in the forums.
When a comment is added on the Adblock Plus blog, an email address can be optionally specified. Unlike the other fields, it is never displayed and is only used to notify the comment author about replies.
Adblock Plus extensions
Extension update checks
Adblock Plus for Firefox allows you to send issue reports that will be temporarily stored on the AdblockPlus.org domain. These reports contain information required to investigate the issue including the Adblock Plus version, browser version, address of the web page where the problem is visible, blockable items on the 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:
- A 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.
- The email address is only used to request more information or to update the user on the issue.
- A list of installed extensions is necessary for the investigation of conflicts with other extensions.
The processed reports can only be accessed by an individual 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.
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.
Adblock Browser for iOS
In the event of an unexpected crash, Adblock Browser for iOS collects data relevant for analyzing the cause of the error and transmits it to our HockeyApp account. The data is solely used for individual troubleshooting (as well as for identifying general defects which lead to unexpected crashes) and is never shared with any third parties other than HockeyApp.
During a crash the following data is sent:
- Bundle identifier, bundle version and short bundle version string of Adblock Browser for iOS.
- Device type, CPU architecture and version of the operating system.
- Timestamp of when the crash happened.
- A generated UUID to prevent duplicate crash reports.
- If an exception was thrown, the plain-text class name and message value of the exception.
- Low level crash data like instruction pointer, method or function names, signal data, pointer registers and information about the loaded binary images.
Said data is only collected when the application crashes. Furthermore, Adblock Browser for iOS explicitly asks for permission to send the collected information after the crash happened. All crash reports stored on our servers are removed after 30 days.
Element Hiding Helper extension
Extension update checks
Some of our webpages host product campaigns that rely on email collection. For example, you can request a link by email to install Adblock Browser on your mobile device. We do not use third parties to manage these campaigns. Instead, data that you submit is handled in-house (i.e. turned into an email or used to send the email). Further, we do not store your email address unless it’s specifically required to execute the related campaign (i.e. email signups for a newsletter or signing up to get notified about a product launch). In cases where we do store your email address, we only store it for the length of time that is needed to execute the campaign (i.e. once you’ve been notified of the launch). We will never share or sell your email address, or any other information collected, to any third parties.