layout/base/nsLayoutUtils.cpp · 688d2c9fa17bbd61d5855eac9bf92e57a18f2f05 · clairehurst / Tor Browser

Forked from The Tor Project / Applications / Tor Browser

130471 commits behind, 879 commits ahead of the upstream repository.

2 years ago

Bug 41116: Normalize system fonts. · a3491594

Pier Angelo Vendrame authored 2 years ago

System fonts are an enormous fingerprinting vector.
Even with font allow lists and with our custom configuration on Linux,
which counter metrics measurements, getComputedStyle leaks several
details.
This patch counters both these kinds of attacks.

Verified

a3491594

History

Bug 41116: Normalize system fonts.

Pier Angelo Vendrame authored 2 years ago

System fonts are an enormous fingerprinting vector.
Even with font allow lists and with our custom configuration on Linux,
which counter metrics measurements, getComputedStyle leaks several
details.
This patch counters both these kinds of attacks.

nsLayoutUtils.cpp 364.95 KiB