eucm transfer cookies from a website to Surfly session (even better - future Surfly session!) on the fly.

It watches for all successful browser navigations via webNavigation API and when it is detected, it reads all cookies via cookies API and migrates them to Surfly's cookie jar, applying Surfly proxification rules. As a result - you will never need to log in again!

The browsers store all cookies in the cookie store. Each top level domain has its own cookie store with the limited space. This space is different for each browser. Firefox and Chrome set it to 180 cookies.

When the extension replicates cookies from a website to Surfly (for example, to surfly.online domain), it puts it in surfly.online cookies store. This store contains all Surfly dashboard cookies + all other cookies for proxied websites. Example: cookies for google.com website are stored in google-com-p.surfly.online domain, however google-com-p.surfly.online domain still uses surfly.online storage.

When the number of cookies exceeds the limit, browsers start to evict cookies (first the expired cookies, next the oldest accessed cookies). If you have a very productive Surfly session, Surfly log in cookie might be evicted from surfly.online cookie store. This causes your Surfly session to be logged out.

The extension is trying to solve this problem by introducing the list of favouriteCookies. If a cookie from this list is evicted, the extension will put it to storage again.

The problem can also be addressed by changing the default browser configuration:

• for Firefox, open about:config and search for network.cookie.. Adjust the following configuration options:
  • network.cookie.maxNumber set it to 10000
  • network.cookie.maxPerHost set it to 2000
  • network.cookie.quotaPerHost set it to 1950
• for Chrome users: install Firefox