delikda.blogg.se - Firefox old version

I always download the installer from but I do acknowledge provided in the article.

I do download a new installer each time a new Firefox version is released and perform a clean install (previous version is uninstalled). Now You: how useful do you think is the information to Mozilla? (thanks PMC for the tip) A quick check of Chrome installers returned identical hashes each time. How users may opt-out before the installation of Firefox is unclear. Mozilla notes that the opt-out mechanism is the standard Telemetry opt-out. The downloaded installers do not have the unique identifier, as they are identical whenever they are downloaded.

Download Firefox from third-party download sites that host the installer, e.g., from Softonic.

Download the Firefox installer from Mozilla's HTTPS repository (formerly the FTP repository).

A search for dltoken using any hex editor reveals the string in the Firefox installer.įirefox users who prefer to download the browser without the unique identifier may do so in the following two ways: One of the easier ways is to check the hashes of two or more Firefox installer downloads (the same version, language and architecture). Interested users may verify the findings.

The feature is powered by Telemetry in Firefox and it applies to all Firefox channels. This will allow us to track which installs result from which downloads to determine the answers to questions like, "Why do we see so many installs per day, but not that many downloads per day?"Īccording to Mozilla's description, the identifier is used to analyze downloading and installation trends among other things. This data will allow us to correlate telemetry IDs with download tokens and Google Analytics IDs. The linked document is not public, but the listing itself confirms the use and provides an explanation on why it has been implemented:

While it is possible to download new installers each time a new Firefox version is released, it is also possible to use the downloaded installer again for that purpose.Ī bug report on Mozilla's official bug tracking website confirms the use of the download token.

The identifier is unique to each Firefox installer, which means that it is submitted to Mozilla whenever it is used. The identifier, called dltoken by Mozilla internally, is used to link downloads to installations and first runs of the Firefox browser.