I run a small online store and often create multiple accounts on marketplaces to test different sales options. On the recommendation of colleagues, I turned my attention to https://octobrowser.net/. Here you can create profiles with unique digital signatures and manage them without the risk of being blocked by security systems. This was especially helpful when I was testing different price offers simultaneously on one platform — previously, such actions could lead to temporary account restrictions. Octo Browser allowed me to work with multiple profiles at the same time and see all the data for each of them separately. This significantly optimized my work and gave me confidence in the stability of my accounts.