The information we could send in the remote lookup can be found in |message ClientDownloadRequest|. Theoretically speaking, the more information is in the remote lookup, the higher detection rate. We should check those fields one by one to have an idea about what we are missing right now.  https://searchfox.org/mozilla-central/rev/a21ac3d8e53cd37b6725f982b185d92fe47d8835/toolkit/components/reputationservice/chromium/chrome/common/safe_browsing/csd.proto#300
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