Firefox has very limited sandboxing, whereas Chrome and Edge have significant sandboxing. The way the sandbox works depends on the browser. This is a protection mechanism that attempts to isolate a compromised browser process and prevent it from causing further harm. However, owing to its complexity, it's not at all uncommon to find vulnerabilities that allow JavaScript to compromise the browser and gain arbitrary code execution with the privileges of the browser process.īecause these types of security bugs are so common, many browsers will implement a sandbox. It cannot do anything which is not permitted by the browser JavaScript interpreter or JIT compiler. ![]() ![]() ![]() ![]() The browser isolates JavaScript, as it executes within a browser process itself.
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