Tor Browser 8.0 sends OS+kernel+TOTAL_PING_COUNT i
Tor Browser Bundle 8.0 sends OS+kernel+TOTAL_PING_COUNT in update queries to Mozilla
- Tails 3.9, which ships with TB 8.0, is also affected.
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User report:[1]
https://blog.torproject.org/comment/277375#comment-277375
Sanitize the add-on blocklist update URL
https://trac.torproject.org/projects/tor/ticket/16931
related, old, closed ticket (unresolved):
TBB-Firefox sends OS+kernel in update queries to Mozilla
https://trac.torproject.org/projects/tor/ticket/6734
[1]: "TBB-Firefox sends Linux kernel version in extensions blocklist update queries to Mozilla. 6 years old ticket closed https://trac.torproject.org/projects/tor/ticket/6734 without fix this privacy issue.
From Ubuntu 18.04.1 LiveCD
/v1/blocklist/3/%7Bec8030f7-c20a-464f-9b0e-13a3a9e97384%7D/60.2.0/Firefox/20180204030101/Linux_x86_64-gcc3/en-US/release/Linux 4.15.0-29-generic (GTK 3.22.30 libpulse 11.1.0)/default/default/1/1/new/"
"about:config
extensions.blocklist.url"
"Also it send TOTAL_PING_COUNT to tell mozilla how many days you use TBB."
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{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"text\/x-go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"mysql","xml":"xml","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","ecmascript":"javascript","groovy":"text\/x-groovy","haskell":"text\/x-haskell","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mysql":"mysql","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"plsql","properties":"text\/x-properties","scheme":"text\/x-scheme","vb":"text\/vbscript","vbnet":"text\/vbscript","verilog":"text\/x-verilog","yaml":"text\/x-yaml"}