head to head · open source
uBlock vs CefFlashBrowser
uBlock has 69,033 GitHub stars, 4,427 forks, 15 open issues and last shipped yesterday. CefFlashBrowser has 5,540 stars, 248 forks, 51 open issues and last shipped yesterday. uBlock leads on adoption by 1,146% (69,033 vs 5,540 stars). uBlock is written in JavaScript under GPL-3.0; CefFlashBrowser is written in C# under MIT. uBlock has attracted 6% as many forks as stars, CefFlashBrowser 4%. uBlock was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| uBlock | CefFlashBrowser | |
|---|---|---|
| GitHub stars | ★ 69K | ★ 5.5K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | C# |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.4K | ⑂ 248 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick uBlock if
- You weight community size — 69K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick CefFlashBrowser if
- You want the CefFlashBrowser feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and CefFlashBrowser fits your workflow better
About uBlock
[![Badge Commits]][Commit Rate] [![Badge Issues]][Issues] [![Badge Localization]][Crowdin] [![Badge License]][License] [![Badge NPM]][NPM] [![Badge Mozilla]][Mozilla] ![Badge Chrome] [![Badge Edge]][Edge] uBlock Origin (uBO) GitHub Releases Stable and development versions on Firefox, Chromium MV2, and Thunderbird. Must be placed manually into web browsers; the Chromium and Thunderbird versions usually won't auto update. Related: uBlock Origin Lite uBlock Origin (uBO) is a CPU and memory efficient [wide spectrum content blocker][Blocking] for Chromium and Firefox. It blocks ads, trackers, coin miners, popups…
read the full uBlock overview →
About CefFlashBrowser
CefFlashBrowser 中文 English 软件介绍 CefFlashBrowser 是一个自带 Flash Player 插件的浏览器，可以正常显示网页上的 Flash 内容，此外还支持打开本地 SWF 文件，管理 Flash 游戏存档等。 下载与使用 在 Release 下载最新的软件压缩包，解压后双击 CefFlashBrowser.exe 即可使用。 [!NOTE] 软件运行依赖 .NET Framework 4.6.2 ，若运行时提示应用程序无法启动，前往这里下载安装即可运行。 [!NOTE] 若打开软件时提示 System.IO.FileNotFoundException 异常，一般是由于缺少 Microsoft Visual C++ Redistributable 导致的，前往这里下载安装后即可正常打开。 存档管理 使用 SOL存档管理器 ，可以对游戏存档进行导出、导入、修改等操作。 [!TIP] 建议在修改存档之前先对存档文件进行备份，以防数据丢失。 Star 趋势
read the full CefFlashBrowser overview →
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Frequently asked questions
Is uBlock or CefFlashBrowser more popular?
uBlock has 69,033 GitHub stars and CefFlashBrowser has 5,540. uBlock has the larger community by that measure.
Are uBlock and CefFlashBrowser free?
Both are open source. uBlock is licensed under GPL-3.0 and CefFlashBrowser under MIT. Neither carries a licence fee.
What is the difference between uBlock and CefFlashBrowser?
uBlock is written in JavaScript and CefFlashBrowser in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, uBlock or CefFlashBrowser?
Choose uBlock if you want the larger community (69,033 stars) or its GPL-3.0 licence terms. Choose CefFlashBrowser if its feature set, stack or MIT licence fits better. Both are self-hostable.