Mozilla Firefox prior to 48.0 and Firefox ESR 45.x prior to 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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mozilla firefox |
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mozilla firefox esr 45.1.1 |
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mozilla firefox esr 45.1.0 |
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mozilla firefox esr 45.2.0 |
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mozilla firefox esr 45.3.0 |