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https://github.com/tarampampam/random-user-agent

😎 Browser extension that automatically replaces the User-Agent with a randomized one
https://github.com/tarampampam/random-user-agent

browser-extension chrome-extension firefox-extension switcher typescript user-agent

Last synced: 6 days ago
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😎 Browser extension that automatically replaces the User-Agent with a randomized one

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README 

        


  logo





  Automatically replaces the User-Agent with a randomized one





  chrome  

  firefox  

  edge  

  opera





  Random User-Agent is an open-source MIT-licensed browser extension that is

  designed to replace the original browser User-Agent identifier (is a sort of "fingerprint") with a randomized

  (based on your preferences).





  opera




## 🔥 Features list



- Incredibly lightweight (`~150KiB` archived)

- Available in the official stores ([Chrome][link-chrome-store], [Firefox][link-ff-store], [Edge][link-edge-store], [Opera][link-opera-store])

- Can automatically change the User-Agent after a specified period of time

- Change User-Agent on browser startup

- Replaces the `User-Agent` HTTP header

- Protection against detection by JavaScript

- User-Agent randomization can be customized by the user (specifying spoofed browsers and OS, etc.)

- Exceptions list (blacklist/whitelist) available

- Allows the use of a remote User-Agents list

- No initial setup needed - just install and forget about the real user-agent leaking



[link-chrome-store]:https://bit.ly/4dCzvut

[link-ff-store]:https://mzl.la/4dHvNzH

[link-edge-store]:https://bit.ly/3V0biH7

[link-opera-store]:https://bit.ly/3Vb8PtT



> [!NOTE]

> 🐞 If you encounter a **bug** with the extension but don't have a GitHub account (and prefer not to register for one), feel free to email it to [`[email protected]`](mailto:[email protected]) along with details about how to reproduce the bug, your operating system, and browser. Thank you!



## 🧩 Installation



Follow up by one of the links at the top 👆 of this page, or download `CRX` ([link][latest-crx]) / `XPI`

([link][latest-xpi]) file directly from the latest release from the [releases page][releases].



[releases]:https://github.com/tarampampam/random-user-agent/releases

[latest-crx]:https://github.com/tarampampam/random-user-agent/releases/latest/download/random-user-agent.crx

[latest-xpi]:https://github.com/tarampampam/random-user-agent/releases/latest/download/random-user-agent.xpi



## 🛠 Where do I can test the functionality?



Open one of the links below both with and without the extension enabled:



| Resource                                            |          Test           |

|-----------------------------------------------------|:-----------------------:|

| [What is my User Agent][test-webbrowsertools]       | ✅ 5 Passed / ❌ 1 Failed |

| [vytal scan][test-vytal]                            | ✅ 2 Passed / ❌ 1 Failed |

| [whoer][test-whoer]                                 |        ✅ Passed         |

| [Browser Leaks][test-browserleaks]                  |        ✅ Passed         |

| [Device Info][test-deviceinfo]                      |        ✅ Passed         |

| [CreepJS][test-creepjs]                             |        ✅ Passed         |



[test-webbrowsertools]:https://webbrowsertools.com/useragent/

[test-whoer]:https://whoer.net/

[test-browserleaks]:https://browserleaks.com/javascript

[test-deviceinfo]:https://www.deviceinfo.me/

[test-creepjs]:https://abrahamjuliot.github.io/creepjs/

[test-vytal]:https://vytal.io/scan



## 📡 Remote User-Agent List



Due to size limitations in the extension settings storage, you are unable to keep a large custom User-Agent list

directly within the extension. Instead, you can host your list elsewhere and provide a link to it in the extension

settings.



For example, you can create your own public repository/account on [GitHub Gist](https://gist.github.com/),

[GitLab](https://gitlab.com/), or similar platforms, and host your list there.



The extension will send a `GET` request to the provided URL location. The supported list format is as follows:



```text

// Comments like this will be ignored

 # Comments prefixed with '#' will also be ignored



Mozilla/5.0 (Macintosh; Intel Mac OS X 11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4619.141 Safari/537.36

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4593.122 Safari/537.36



// Additional user-agents can be listed here

```



> [!NOTE]

> #### 📜 How to translate (localize) this extension?

>

> ...or fix translation mistakes. The translation process described [here](src/i18n)



## 👀 FAQ



Most questions can be answered by reading the [issues][issues]. If the issues don't answer your question, open up a

new [discussion][discussions]. If you find a bug or have a feature request, please file a [new issue][new-issue].



  

    Could this extension actually be making users more uniquely fingerprintable, not less?

  



  Faking your user agent might make you _more_ fingerprintable, not less. There are ways other than `User-Agent`

  sniffing to determine what browser you're using, so malicious sites could learn what browser you're _really_ using

  through other means and then combine that with your randomly changing `User-Agent` to pretty effectively track you.

  For background, see [this GitHub issue](https://github.com/tarampampam/random-user-agent/issues/47).



  Why do hotkeys on some sites no longer work?



  This may occur because your User-Agent simulates MacOS - in this case, some websites attempt to handle `⌘ cmd`

  key instead of `ctrl`. To fix this issue, simply disable the MacOS User-Agent in the extension generator settings.



  Are keyboard shortcuts supported?



  Yes, keyboard shortcuts are supported. The default shortcut for user-agent renewal is `Ctrl+Shift+U`. You can

  change it in your browser settings: [chrome://extensions/shortcuts](chrome://extensions/shortcuts) (in Google Chrome).



[issues]:https://github.com/tarampampam/random-user-agent/issues

[new-issue]:https://github.com/tarampampam/random-user-agent/issues/new/choose

[discussions]:https://github.com/tarampampam/random-user-agent/discussions



## 🦾 Contributors



I want to express my heartfelt gratitude to everyone who has contributed to this project:



[![contributors](https://contrib.rocks/image?repo=tarampampam/random-user-agent)][contributors]



[contributors]: https://github.com/tarampampam/random-user-agent/graphs/contributors



## 🛡 Privacy Policy



> [!IMPORTANT]

> TL;DR: Random User-Agent has never collected and will never collect any personal data or browsing history.



You can find the full privacy policy text [here](PRIVACY_POLICY.md).



🚀 How to publish a release



> [!NOTE]

> This note is for me, so I don't forget anything...



1. Make the required changes in this repository and test them locally

2. Publish a new release using the [releases page][releases]

3. Open the "[Chrome Web Store Developer Dashboard][chrome-upload-new]", send a draft to review

4. Download the `main.crx` file from the dashboard, rename it to `random-user-agent.crx`, and upload it to the

[release on GitHub][releases]

5. Open the "[Mozilla add-on developer hub][ff-upload-new]", download the `random_user_agent_X.X.X-blabla.xpi`

file from the dashboard (**after** receiving `Approved` status for the version), rename it to

`random-user-agent.xpi`, and upload it to the [release on GitHub][releases]

6. Don't forget to update the [Edge][edge-upload-new] and [Opera][opera-upload-new] stores

7. Open a bottle of beer; you've earned it!



[chrome-upload-new]:https://chrome.google.com/webstore/devconsole/ea9e18ff-c849-424a-acba-9b43eaad29c8/einpaelgookohagofgnnkcfjbkkgepnp/edit/package

[ff-upload-new]:https://addons.mozilla.org/en-US/developers/addon/random_user_agent/versions/submit/

[edge-upload-new]:https://partner.microsoft.com/en-us/dashboard/microsoftedge/6e5e9cbf-8846-4830-9fa5-9f77d03aa39f/packages

[opera-upload-new]:https://addons.opera.com/developer/package/266286/?tab=versions

[releases]:https://github.com/tarampampam/random-user-agent/releases