Browser sandboxing is a security technique used to create an isolated environment for running web applications and software, thereby protecting the local system from potential threats such as malicious code or unauthorized programs. This practice is increasingly important due to the rising costs and occurrences of data breaches, as highlighted by the IBM and Ponemon Institute's report on the subject. Popular browsers like Chrome, Firefox, and Edge have built-in sandboxing capabilities to prevent vulnerabilities, and they employ different isolation techniques such as local and remote browser isolation to mitigate risks. Although browser sandboxing enhances security by quarantining threats and preventing unauthorized access to system resources, it is not entirely foolproof, and some components like Flash and ActiveX may still be vulnerable. As a complement to traditional sandboxing, cloud-based platforms like LambdaTest offer secure remote testing environments, allowing developers to conduct tests on real browsers and operating systems without compromising local system integrity.