In order to gain this better understanding, we created a download token, i.e. Understanding this user journey can then help us design a better installation process and improve the experience of new users.
Firefox download size install#
When that's the case, we want to understand which sites new users are coming from and whether they stick around to install Firefox. There are times when they download it through a third party site. "Every day, people download the Firefox browsers from. Statement from MozillaĪddendum: Mozilla has send me the statement below. Here you can read that the whole thing can be turned off via opt-out. At least my trust in Firefox has suffered a lot at this point – because I didn't find anything in the privacy policy regarding this identifier. But if they create installations with unique identifiers, then I would not rule out misuse. Firefox is also in the Tor bundle – although they use their own installer. With me, however, all alarm bells now shrill, because if an installer identifier exists. Ghacks writes: The feature is supported by telemetry in Firefox and applies to all Firefox channels. This should provide answers to questions like, "Why are we seeing so many installs per day, but not so many downloads per day?" So actually a noble goal: analyzing download and installation trends. This way they can track which installations result from which downloads. The developers write that they want to be able to correlate the telemetry IDs with download tokens and Google Analytics IDs using this data. What does Mozilla intend with the identifier? The identifier assigned during installation would therefore be retained over a Firefox lifetime.
Firefox download size update#
However, most users will use the browser's update function. A user could indeed use a new installer each time a new Firefox version appears. This means that Mozilla creates a digital fingerprint every time Firefox is installed and actually every time Firefox is started, which could be used for tracking. of the two downloads in HashMyFiles (see the following figure).Īlthough both downloads have an identical file size and were downloaded within seconds of each other, it is immediately apparent in the above figure that the digital fingerprint in the form of the hash values (MD5, SHA1, SHA256, etc.) and the CRC32 value are different. Then I displayed the MD5 and hash values (SHA1) etc.
Firefox download size windows#
I did a quick test and downloaded the Windows installer from the Mozilla Firefox download page twice in a row. The mechanism is briefly mentioned in the Bugzilla bug tracker – and describes here that the hash value generated this way is unique for each installation.
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