⚡ 簡単な評価:
- 価格: モジラ VPN starts at $4.99/month on the annual plan. OysterVPN starts at $5.99/month.
- 最適な用途: Mozilla VPN suits Firefox users who want audited privacy. OysterVPN suits budget streamers and torrenters.
- 主な違い： Mozilla VPN has Cure53 audits and multi-hop routing. OysterVPN unblocks Netflix and sells lifetime access.
- 私たちのおすすめ： OysterVPN for most users. It packs more features for streaming and P2P into flexible plans.
Mozilla VPN and OysterVPN cost about the same to start.
But they’re built for very different people.
Mozilla VPN comes from the 非営利 Firefoxブラウザの裏側。
OysterVPN is a small Irish VPN provider with a lifetime deal.
One wins on trust. The other wins on streaming and flexible pricing.
概要
This Mozilla VPN vs Oyster VPN comparison covers price, privacy, speed, and streaming.
We reviewed documentation, pricing pages, and independent reviews for both tools.
弊社のライター陣は、各VPNサービスを実際に時間をかけて試用しました。
それらのメモは、以下の「チームが気づいたこと」のセクションに記載されています。
Mozilla VPN とは何ですか?
Mozilla VPN is a standalone VPN from Mozilla, the non-profit behind Firefox.
It launched in 2020 and runs on top of Mullvad’s infrastructure.
It encrypts your internet traffic and hides your IP addresses from websites.
That keeps your データ safe on public Wi-Fi in cafés and airports.
Every VPN connection uses the WireGuard protocol.
It also hides your activity from trackers, so advertisers can’t target you as easily.
Here’s a quick video look at the app.
モジラVPN
Privacy-first VPN from the makers of Firefox. It runs on Mullvad’s servers with WireGuard. One plan covers five devices.
Mozilla VPNの料金プラン
Mozilla VPN has one subscription option with two billing cycles.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 年間 | 月額4.99ドル | Long-term users who want the lowest rate |
| 毎月 | 月額9.99ドル | Short trips or testing the service |
Pricing verified September 2026.
無料トライアル: None. There’s no free trial and no free version of the app.
返金保証: Mozilla offers a 30-day money back guarantee for first time customers.
📌 注記： One subscription covers up to five devices. The monthly plan costs twice the annual rate. It’s still cheaper month-to-month than ExpressVPN or ノードVPN. But マルヴァドVPN charges less for its own monthly plan.
⚠️ Price check: Some review sites list $4.99 as the monthly price. They say yearly billing isn’t offered. Others call the annual rate pricier than rivals’ yearly deals. Confirm the final price at checkout.
Mozilla VPNの主な利点
Here’s what makes Mozilla VPN worth a look:
- Non-profit backing: Mozilla’s mission is a free and open internet. It doesn’t share your data with advertisers or marketers.
- Audited privacy: Cure53 ran independent 安全 audits of the apps. The privacy policy says no activity logs are stored.
- Mullvad’s network: You get 500+ servers in 30+ countries. Mullvad is known for speed and security.
- Kill switch on by default: If the tunnel fails, your traffic stays blocked. There’s no setting to remember.
- Multi hop routing: Traffic can pass through two servers instead of one. That adds another layer of protection.
- Ad and tracker blocking: Mozilla VPN offers built-in blocking for ads, trackers, and malware. It works across the whole device.
私たちのチームが気づいたこと
私たちの 作家 signed up for Mozilla VPN and spent several days exploring the apps. Here’s what stood out:
Mozilla VPNのメリットとデメリット
✅ メリット
- Backed by a non-profit, with independent Cure53 audits
- Kill switch turns on by default
- Multi-hop and app exclusions come in the same plan
- Each Firefox tab can use a different server
❌ デメリット
- Doesn’t unblock Netflix or Disney Plus
- Small server network compared with most rivals
- No free trial and no free version
- Collects your IP address and some technical data
OysterVPNとは何ですか？
OysterVPN is a budget VPN provider based in Ireland.
Ireland sits outside the 5/9/14 Eyes intelligence alliances.
The service encrypts your internet traffic and hides your IP address.
It routes each connection through remote servers in other countries.
That helps you reach geo restricted content like Netflix and BBC iPlayer.
It also sells a rare lifetime access plan.
Watch this short OysterVPN overview.
🏆 Winner: OysterVPN
Irish VPN with AES-256 encryption and torrenting on every server. It unblocks Netflix and BBC iPlayer. Lifetime access is an option.
OysterVPNの価格設定
OysterVPN uses a single payment tier. You just pick how long you subscribe.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 1ヶ月＋2ヶ月無料 | 月額5.99ドル | Testing the service first |
| 生涯アクセス | 月額59.99ドル | Users who never want renewals |
| 1年 | 月額29.99ドル | Budget users planning ahead |
Pricing verified September 2026.
無料トライアル: None. There’s no free trial or free VPN tier.
返金保証: Every plan has 30 days, so you can test the service risk free.
📌 注記： One OysterVPN subscription covers multiple devices, up to five at once. Payment is limited to major credit cards and PayPal. There’s no cryptocurrency option.
⚠️ Price check: Other sites list the monthly plan at $9.99 with 3 free months. They show the yearly plan at $2.50/month and lifetime access as a one-off $49.99 payment. Promotions change often, so confirm at checkout.
OysterVPNの主な利点
Here’s what OysterVPN offers for the money:
- Secure VPN protocols: Choose WireGuard, OpenVPN, or IKEv2. AES-256 encryption protects every session.
- 漏れ防止: The app blocks IP, DNS, and WebRTC leaks. An internet kill switch stops accidental data leaks.
- Streaming access: It can unblock Netflix, Max, ESPN+, and BBC iPlayer. Dedicated streaming servers help with popular streaming services.
- Torrent-friendly: P2P is allowed on all servers. Its security features for file sharing are solid.
- 組み込みの広告ブロッカー: Ads and malware get blocked automatically. You don’t need a separate extension.
- Strict no logs policy: The company says it doesn’t collect or store user data. It’s based outside the 5/9/14 Eyes.
私たちのチームが気づいたこと
Our writer signed up for OysterVPN and tested the apps across a few devices. Here’s what stood out:
OysterVPNのメリットとデメリット
✅ メリット
- Unblocks Netflix, Max, ESPN+, and BBC iPlayer
- Torrenting allowed on every server
- Choice of WireGuard, OpenVPN, and IKEv2
- Lifetime access plan with no renewals
❌ デメリット
- ログなしの主張に関する第三者による監査は行われていない。
- Speeds drop about 55% on distant servers
- No native Linux, smart TV, or console apps
- Slow email support and no phone line
機能比較
Let’s compare Mozilla VPN and OysterVPN across 10 key areas. Each section shows how both vpn services handle the feature.
| 特徴 | モジラVPN | オイスターVPN |
|---|---|---|
| 開始価格 | 月額4.99ドル | 月額5.99ドル |
| 無料プラン | ❌ | ❌ |
| キルスイッチ | ✅ デフォルトでオン | ✅ |
| スプリットトンネリング | ✅ App exclusions | ✅ Windows & Android |
| マルチホップ | ✅ | ❌ |
| プロトコル | WireGuardのみ | WireGuard、OpenVPN、IKEv2 |
| 独立監査 | ✅ キュア53 | ❌ |
| Netflixのブロックを解除する | ❌ | ✅ |
| Native Linux App | ✅ | ❌ |
| 最適な用途 | Privacy and Firefox users | Budget streamers and torrenters |
1. セキュリティと暗号化
モジラVPN: Every tunnel uses WireGuard, a modern protocol built for speed and security. There’s no fallback protocol if a network blocks it. Mozilla VPN’s feature list also covers ad, tracker, and malware blocking.
オイスターVPN: OysterVPN features AES-256 encryption for all your data. It adds advanced security features like protocol choice and an ad blocker. That’s a lot of protection for a budget price.
It also includes DDoS protection. That helps gamers and anyone who worries about targeted attacks on their connection.
2. Privacy & Logging
モジラVPN: It doesn’t log your online activity. It does collect your IP address plus some technical and interaction data. Cure53’s independent audits checked the privacy claims.
オイスターVPN: The company promises a zero logging policy. But it lacks an audited no logs policy. No third party has checked its privacy policies or security measures yet.
3. Kill Switch & Leak Protection
モジラVPN: The kill switch is on by default. If the tunnel breaks, traffic stops until it reconnects. Security.org’s leak tests found no DNS leaks.
オイスターVPN: The internet kill switch is a crucial feature here. It blocks all traffic when your VPN connection drops. Turn it on in settings right after setup.
OysterVPN also adds IP leak protection and DNS leak protection. Your DNS requests stay inside the VPN tunnel.
4. Speed & Protocols
モジラVPN: Mullvad’s network plus WireGuard gives it fast speeds on paper. One review saw download speeds peak at 360Mbps. Other reviewers still rate its connection speeds below average.
オイスターVPN: OysterVPN’s speeds are decent on nearby servers. On distant servers, they drop by about 55% on average. That makes HD and 4K streaming a struggle.
💡 プロのヒント: Run a speed test on your regular internet connection first, then connect. Check download speed and upload speed. Then pick the fastest server near your physical location.
5. Server Network & Streaming
モジラVPN: The server list has 500+ servers in 30+ countries. You can only sign up in about 35 countries. It unblocks ITV, Channel 4, and 9Now, but not Netflix or Disney Plus.
オイスターVPN: OysterVPN’s servers number 400+ in 35+ countries, per some reviews. Others count 150+ servers in 17 countries. It unblocks Netflix, Max, and ESPN+, but struggles with Hulu and Disney+.
⚠️ 警告： Both networks are small next to other VPNs with thousands of servers. Fewer server locations mean more crowding at peak times.
6. スプリットトンネリング
モジラVPN: Its split tunneling feature is called app exclusions. You pick apps that skip the VPN, like a banking app. It isn’t available on iOS.
オイスターVPN: Split tunneling works only on Windows and Android. マック and iPhone users can’t route apps outside the tunnel.
7. Browser Tools & Extras
モジラVPN: This is where Firefox users win. With Multi-Account Containers, each tab can connect to a different VPN server. Mozilla also builds other services, like Firefox Relay and the Facebook Container add-on.
オイスターVPN: There’s no browser tie-in like that. Instead, you get browser extensions for quick online security. A built-in ad and malware blocker comes too. It works across desktop apps and mobile apps.
8. Apps & Devices
モジラVPN: Mozilla VPN’s features work on Windows, macOS, Linux, Android, and iOS. The android app and ios app mirror the desktop app. You can connect up to five devices.
These are intuitive apps, with one big toggle to connect. Pick your operating system, sign in, and you’re protected.
オイスターVPN: OysterVPN apps run on Windows, macOS, Android, and iOS with a user friendly interface. There’s no Linux app and nothing for smart TVs or consoles. You get five simultaneous connections, not unlimited connections.
9. Torrenting & Customer Support
モジラVPN: It doesn’t advertise P2P servers. Help comes through Mozilla’s support site and a contact form. The help library is large and clear.
オイスターVPN: Torrenting is allowed on every server, with P2P-optimized options. Customer support is the weak spot. There’s no phone line, reviews disagree on chat support, and email replies are slow.
10. 価格設定とコスト
Here’s how the plans line up side by side.
| プラン | モジラVPN | オイスターVPN |
|---|---|---|
| 無料 | ❌ | ❌ |
| 毎月 | 月額：9.99ドル/月 | 1-Month +2 Months free: $5.99/month |
| 年間 | 年間：月額4.99ドル | 1-Year: $29.99/month |
| 一生 | ❌ | Lifetime Access: $59.99/month |
| 返金保証 | 30 days (first purchase) | 30日間（全プラン共通） |
モジラVPN: The annual plan is the smart pick, since monthly billing costs double. There’s no free version of the app. Firefox now has a free built-in VPN, but it only covers browser traffic.
オイスターVPN: You get more ways to pay, including a plan with no renewals. That’s good value if the company sticks around. The trade-off is a young service with no audit.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| No renewals ever | オイスターVPN | Lifetime access plan |
| 検証済みのプライバシー | モジラVPN | Independent Cure53 audits |
| Netflixのストリーミング配信 | オイスターVPN | Unblocks Netflix and Max |
| Firefox browsing | モジラVPN | Different server per tab |
| Linux desktop | モジラVPN | ネイティブLinuxアプリ |
| トレント | オイスターVPN | すべてのサーバーでP2P接続が可能 |
| Protocol choice | オイスターVPN | WireGuard、OpenVPN、IKEv2 |
💰 あなたの予算
Mozilla VPN’s annual plan is simple and fair. OysterVPN wins if you want to pay once and forget about bills.
🔌 あなたの技術スタック
Linux users should pick Mozilla VPN. OysterVPN has no Linux app and no support for streaming devices like smart TVs.
🔒 あなたのプライバシーのニーズ
Mozilla VPN has audits and a non-profit parent. OysterVPN’s logs policy hasn’t been checked by outsiders.
🎬 あなたのストリーミング習慣
OysterVPN handles Netflix and BBC iPlayer. Mozilla VPN only fits regional TV like ITV and 9Now.
🆓 無料トライアルとデモ
Neither VPN has a free trial. Both give you a 30-day money back guarantee instead, so test your key apps 早い.
🛟 サポートオプション
Mozilla backs its app with a big help library. OysterVPN support is thinner, and it doesn’t work reliably in China.
切り替えガイド
既にこれらのVPNアプリのいずれかを使用していますか？切り替える場合に何が起こるか、以下に説明します。
🔄 Switching from Mozilla VPN to OysterVPN?
✅ 得られるもの：
- Netflix, Max, and ESPN+ access
- A choice of three VPN protocols
- A one-time lifetime payment option
❌ 失うもの：
- Independent security audits
- Multi-hop routing and Firefox tab containers
- A native Linux app
📋切り替え方法：
- Cancel Mozilla VPN in your Mozilla account settings.
- Purchase OysterVPN, then install OysterVPN on your devices.
- Turn on the kill switch and connect to a nearby server.
🔄 Switching from OysterVPN to Mozilla VPN?
✅ 得られるもの：
- Audited apps from a non-profit
- Multi-hop routing and per-tab servers in Firefox
- Full Linux support
❌ 失うもの：
- Netflixのブロック解除
- 生涯価格
- OpenVPN and IKEv2 options
📋切り替え方法：
- Request an OysterVPN refund within 30 days if eligible.
- Sign up on the Mozilla VPN website with a Mozilla account.
- Install the app on up to five devices and connect.
私たちのレビューで取り上げられなかったこと
This comparison focused on everyday privacy, streaming, and torrenting. We didn’t test router setups or custom hardware configuration. We also didn’t verify session times or test either tool inside China. Prices and features reflect September 2026 and may change. Our full Mozilla VPN review and OysterVPN review go deeper.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格設定の柔軟性 | オイスターVPN |
| 🎬 ストリーミング | オイスターVPN |
| 📥 トレント | オイスターVPN |
| 🔧 Protocol Choice | オイスターVPN |
| 🔒 プライバシーと監査 | モジラVPN |
| ⚡ スピード | モジラVPN |
| 🔌 プラットフォームサポート | モジラVPN |
| 🏆総合優勝 | オイスターVPN |
🏆 WINNER: OYSTERVPN
OysterVPN wins 4 out of 7 categories.
最適な用途: Budget users, Netflix streaming, torrenting
Mozilla VPN and OysterVPN solve different problems. Mozilla VPN is a privacy tool from a trusted non-profit. OysterVPN is a decent VPN that does more for streaming and torrents.
Is Mozilla VPN worth it? For Firefox users who care about audits more than Netflix, yes. It’s also the safer pick on Linux. But its small network and weak streaming hold it back.
If you want more features per dollar, OysterVPN is the better choice. Just remember its privacy claims aren’t audited yet. Use the refund window to test it on your own internet connection.
Mozilla VPNの比較をもっと見る
Mozilla VPNが他のVPNプロバイダーと比べてどうなのか、以下に比較してみましょう。
Mozilla VPNが優れている点： non-profit ownership, fewer upsells, and per-tab servers in Firefox.
NordVPNが優れている点： a much larger network, Netflix and Disney+ access, and audited no-logs claims.
Mozilla VPNが優れている点： Firefox container support, one simple plan, and Mullvad’s speedy network.
プロトンVPN 勝利したタイトル： a free plan, Secure Core routing, and better streaming support.
Mozilla VPN vs サーフシャーク VPN
Mozilla VPNが優れている点： a non-profit parent, fewer add-on sales pitches, and Firefox tab routing.
Surfsharkが勝利した点： unlimited devices, streaming unblocking, and servers in far more countries.
OysterVPNの比較をもっと見る
OysterVPNが他のVPNプロバイダーと比べてどうなのか、以下に比較してみましょう。
OysterVPNが優れている点： a lower entry price, a lifetime option, and torrenting on every server.
エクスプレスVPN 勝利したタイトル： independent audits, servers in more countries, and router and TV apps.
OysterVPNが優れている点： a pay-once plan, Irish jurisdiction outside the 9 Eyes, and fewer plans.
Surfsharkが勝利した点： unlimited connections, audited privacy claims, and a native Linux app.
OysterVPN vs プライベートインターネットアクセス
OysterVPNが優れている点： lifetime pricing, a base outside the 5 Eyes, and simpler settings.
Private Internet Accessが優れている点： open-source apps, unlimited devices, and Linux support.
よくある質問
Mozilla VPN は無料ですか?
No. The standalone app has no free version or free trial. Firefox now has a separate free built-in VPN. It only covers browser traffic, with a 50 GB monthly cap.
Mozilla VPNは信頼できるのか？
Mostly, yes. Cure53 has audited its apps, and it doesn’t log your browsing activity. It does collect your IP address and some technical data. Read the privacy notice first.
Oyster VPNは信頼できるVPNですか？
Yes. It’s a real paid service with AES-256 encryption and a 30-day refund window. The catch is that no third-party audit has verified its no-logs claims yet.
Oyster VPNの本社はどこにありますか？
The company is based in Ireland. That puts it outside the 5/9/14 Eyes intelligence alliances. It still follows EU data protection laws.
Mozilla VPNはインターネットの速度を低下させますか？
A little. Every VPN adds some delay. Its WireGuard setup on Mullvad’s network is quick on nearby servers. Still, some reviewers rate its overall speeds below average.
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