CAPTCHA poses challenges for automated processes, leading to the need for CAPTCHA Solver Extensions.Two main solutions for dealing with CAPTCHAs: in-house scripting or delegation to third-party providers.Overview of three key CAPTCHA Solver Extensions: SolveCaptcha, Buster, and 2Captcha.Different types of CAPTCHAs and their defenses against automation: image CAPTCHAs, Google reCAPTCHA, hCaptcha, GeeTest, and more.Browser Anti CAPTCHA Extension Solver process involves widget discovery, task dispatch, and token injection stages.Commercial positioning, technical workflow, and pricing of SolveCaptcha, emphasizing neural speed and compliance.Buster, a free audio CAPTCHA solver, offers a niche solution for Google reCAPTCHA v2 audio challenges.2Captcha facilitates labor arbitrage at scale by connecting companies with distributed workers to solve CAPTCHAs.Comparative appraisal of SolveCaptcha, 2Captcha, and Buster based on technology, turnaround time, transparency, and format coverage.Practical deployments of CAPTCHA Solver Extensions in competitive intelligence, continuous delivery, regulatory reporting, accessibility services, and illicit arenas.