If you searched for an “OnlyFans downloader for Firefox” or “OnlyFans downloader for Chrome,” you’ve probably noticed the answers are vague. So let’s be straight about it: browser support is a real, technical limitation, not a marketing checkbox. Fanripper runs on Chromium browsers — Chrome, Brave, and Edge — and it does not run on Firefox. Below is exactly why, what your options are if Firefox is your daily driver, and how to install on each supported browser.
This guide assumes you’re backing up content you already pay for and have lawful access to — a personal archive, not redistribution.
Which browsers does Fanripper support?
Fanripper is a browser extension for OnlyFans and Fansly. It’s built on Manifest V3, the current extension platform used by Chromium-based browsers. That platform is the deciding factor in what works.
| Browser | Supported? | Notes |
|---|---|---|
| Google Chrome | Yes | The most common setup; install via chrome://extensions. |
| Brave | Yes | Chromium-based, privacy-focused, free. |
| Microsoft Edge | Yes | Chromium-based, ships with Windows. |
| Mozilla Firefox | No | Different extension engine; Manifest V3 Chromium builds don’t load. |
| Safari | No | Uses Apple’s own extension system. |
| Kiwi Browser (Android) | Yes | Chromium browser that supports Chrome extensions on phones. |
If you’re on a phone, Fanripper can run on Android through Kiwi Browser, which supports Chrome extensions. There’s a full walkthrough in our guide to downloading OnlyFans videos on Android.
Why there’s no Firefox version (the honest answer)
Firefox and Chrome don’t share the same extension engine. Chromium browsers use the Manifest V3 APIs for things like background service workers, network rules, and the local download pipeline. Fanripper is built directly on those APIs — including the parts that decrypt and assemble DRM-protected video on your device.
Firefox implements extensions differently. A Chromium Manifest V3 build like Fanripper simply won’t load there as-is; it isn’t a matter of flipping a switch. Rather than ship a half-working Firefox port that breaks on the hardest part (large DRM videos), we keep Fanripper focused on the Chromium platform where the whole pipeline is reliable.
So if a site promises a polished “Firefox OnlyFans downloader” that does everything a Chromium extension does, treat that claim with healthy skepticism.
I use Firefox — what should I do?
The realistic, no-nonsense option is to run a Chromium browser alongside Firefox. You don’t have to abandon Firefox or change your habits; you just use a second browser for this one task.
- Brave — free, open-source, blocks ads and trackers by default. If you like Firefox for privacy reasons, Brave will feel familiar.
- Microsoft Edge — free and already installed on Windows. Nothing to download if you’re on a PC.
- Google Chrome — free; the path of least resistance if you already have it.
Log into OnlyFans or Fansly in that Chromium browser the same way you normally would, install Fanripper, and you’re set. Your Firefox setup stays untouched.
How to install Fanripper on Chrome, Brave, or Edge
Fanripper isn’t in the Chrome Web Store — stores routinely remove extensions that work with subscription content, so we distribute it directly and it auto-updates after the first install. The steps are nearly identical across all three Chromium browsers; only the extensions URL changes.
- Open the extensions page for your browser:
- Chrome: go to
chrome://extensions - Brave: go to
brave://extensions - Edge: go to
edge://extensions
- Chrome: go to
- Turn on Developer mode using the toggle in the top-right corner.
- Load the build. Either use Load unpacked to point at the unzipped extension folder, or run the signed build per the on-screen steps. The install page has the current download and an animated walkthrough that matches whichever browser you’re using.
- Pin it. Click the puzzle-piece icon in the toolbar and pin Fanripper so it’s one click away.
- Open OnlyFans or Fansly in a tab where you’re already logged in. Fanripper works through your existing session — it never asks for your OnlyFans password.
That’s it. From there you can save photos, standard videos, and DRM-protected videos from both posts and direct messages.
What you get once it’s running
The browser you choose doesn’t change what Fanripper does — the capabilities are the same across Chrome, Brave, and Edge:
- Everything runs locally. Decryption and saving happen on your device; nothing is uploaded to any server.
- Large videos don’t choke. Fanripper handles 4 GB+ videos cleanly, with no crashing and no hidden Chrome flags — a spot where many tools fail above ~2 GB. More on that in our OnlyFans video downloader guide.
- Human-paced downloads. It paces requests like normal browsing, which carries lower account-flag risk than aggressive scrapers. That’s lower risk, not a guarantee — no honest tool can promise you’ll never be flagged.
- No card, no KYC. Free covers unlimited standard photo and video downloads. Basic ($5/mo) adds DRM video, Pro ($8/mo) adds bulk, and Lifetime is $99 once, all billed in crypto inside the extension.
The short version
There is no Firefox version of Fanripper, and that’s the truthful answer rather than a “coming soon.” It works on Chrome, Brave, and Edge because those share the Chromium Manifest V3 platform the tool is built on. If Firefox is your main browser, grab Brave or Edge for free, install once, and keep using Firefox for everything else.
Ready to set it up? Head to the install page and follow the walkthrough for your browser, or learn more at Fanripper. Questions about your specific setup? Reach the team on Telegram at @fanripper.