1.
I bought AdGuard VPN lisences. I installed the Firefox Add-on), and the Window ver too.
Adguard have sync, e.g., Adguard window ver. <-> Adguard browser add-on.
However VPN doesnt sync. Further it take lisence. Thus when you install Ad.VPN(OS ver.) and Ad.VPN(browser Add-on), you use two lisences.
I hope to fix this defect.

2. The important thing is, browser Add-on works better than Ad.VPN(OS ver.)
Ad.VPN(OS ver.) works on every browsers and programs, but sometime it shutdowns.
Ad.VPN(browser Add-on) works on only its browser and consumes lisence, but rarely shutdown.

After all, I uninstalled AdGuard VPN(OS ver.)

it crashes and freezes many times at connection time , not fully compatible with firefox browser

3gb volumen ist wenig, zudem für server die in anderen anwendungen gratis sind. es ist kein proxy für schweiz und österreich vorhanden. das einzige was gut ist, man kann seiten ausschliessen. ansonsten ist das addon nichts wert. es gibt bessere und vorallem ohne daten begrenzung.

Третий день пользуюсь бесплатной версией и пока очень доволен.

После подтверждения e-mail лимит трафика - 4 гб. С помощью рекомендаций для знакомых (или создание новых аккаунтов по пригласительной ссылке для себя) можно получить еще до 5 гб сверху.

Скорость для бесплатного VPN неплохая: заявлено до 20 мбит/с, днем было 3-4 мбит/с, ночью 15-17 мбит/с. Выбор локаций более чем достаточный: десяток стран.

Бесплатный аккаунт разрешает два одновременных подключения. Если кому-то мало, кто мешает завести еще парочку аккаунтов :)

Интерфейс простой и удобный. Есть возможность настраивать списки исключений и включать VPN только на определенных сайтах. Есть и обратная опция: отключать VPN только на выбранных сайтах. Короче говоря, есть раздельное туннелирование.

Резюме: хороший бесплатный VPN с трафиком от 4 гб, благодаря которому можно заходить на запрещенные Роскомпозором сайты на неплохой скорости с возможностью раздельного туннелирования.

Totally satisfying!

Muy buena app, grácias!

2-5-25: Hasn't improved only use it occasionally now too much trouble connecting few to no free ips
12-28-24: asks 4 further spyware permissions then blocks your access when u refuse. Acts like hackers in control. constantly loses ur account requringmaking new one. junk run by losers
8-31-24: no change still the next to worst "free"vpn addon. Can't remember you asking your to reinstall, most servers frequently offline requring reinstall to get it working. Junk.
7-29-23: stopped using it months ago. Extremely flaky. can't remember you, inconsistently asks you to reregister. Servers extremely slow or do not respond at all or are listed as "offline", hahaha. What a joke. Browsec a much better free vpn (I have no commercial interest in this just reporting my experience)
3-17-23: How do you go from top of the heap to the bottom of the barrel in less than a year? Ask the staff at adguard. Slow as hell to connect a real PITA to use it. Can't keep you user id and registration constantly asking you to fill out a new one. Privacy concerns, they are tracking you and maybe worse. Frequent unusable IPs due to their being "offline". Drops connections. Used to have dns leaks not sure if still? Just a very unresponsive difficult to use VPN. Browsec is MUCH more stable, easy to use, reliable and no dns leaks. Hardly ever use this one any more, although it sometimes is a bit faster. I guess they could not deal with an increase of users, that's why it sucks now.
12-17-22: loses out completely to Browsec VPN. Outs your IP with DNS leaks. Takes forever to connect. Drops connections. IPs frequently "offline". Browsec has less ips but much more stable, faster connects. You spend half your time waiting for their crap proxies to connect. Blah
11-3-2022: Longer it goes the worse it gets. Can't connect. All servers offline. Cant find their asses from a hole in the ground as far as dns lookups go-many "can't find it" error messages. Why do people even start companies like this if they cannot maintain them. Big disappointment, it was good when no one else was using it, now it's just another crappy "free" vpn. Browsec is better now by far.
9-17-22: WOW. From really good to really, really bad. Today I had two time their "proxies" disconnect me w/out warning revealing my home IP. Switched to another free proxy. Lately this one is either "offline", cannot connect or they kick you off the proxy and violate your privacy. Junk. Maybe they are trying to tell us we must PAY if we want a REAL vpn?
slow as hell to connect. changed to another free (one of many available) vpn due to it's sloth like slowness. Once connected not so bad but takes forever to connect and their ip are frequently "offline".

Хороший плагин VPN, с возможностью выбора режима (постоянная работа и работа только на определенных сайтах), с приемлимыми ценами

Давно искал нормальный VPN. Программы AdGuard работают хорошо! Рекомендую!