> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.simplyprint.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Browser extensions blocking SimplyPrint (uBlock, Privacy Badger, ad blockers)

**Symptoms this article covers:** SimplyPrint shows a blank screen, blue screen, or infinite spinner. The payment form, Cloud Slicer, or live printer status doesn't load. The chat in the bottom-right is missing. The page works in one browser but not another.

If any of these match, a browser extension is the most likely cause. This is the single most common reason SimplyPrint doesn't load for individual users.

## 30-second test: does it work in incognito?
Open SimplyPrint in an incognito or private window.

| In Chrome, extensions are NOT automatically off in incognito. Open `chrome://extensions`, find each one, and uncheck "Allow in incognito" before testing. Otherwise this test is meaningless.

- **Works in incognito (extensions off):** an extension is the cause. Continue below.
- **Still broken in incognito (extensions off):** something else. See [Stuck on loading? Clear cache, try incognito, or another browser](https://help.simplyprint.io/en/article/stuck-on-loading-clear-cache-try-incognito-or-another-browser-1v547e7/).

## Extensions we see in support tickets

| Extension | What it breaks | Quick fix |
|---|---|---|
| **uBlock Origin** | Stripe form, Crisp chat (custom filters) | Click uBlock icon → big power button to disable on this site |
| **AdBlock / AdBlock Plus** | Stripe form, CDN scripts | Click icon → pause on this site |
| **Privacy Badger** | Crisp chat, sometimes whole panel | Click Badger icon → set sliders for `simplyprint.io`, `cloudflare.com`, `crisp.chat` to green |
| **Ghostery** | Most third-party scripts in aggressive mode | Click icon → trust this site |
| **NoScript / ScriptSafe** | Everything (blocks JS by default) | Whitelist `simplyprint.io` |
| **Brave Shields** | Stripe, Crisp | Raise shield level for SimplyPrint (lion icon → "Shields down") |
| **Antivirus extensions** (Kaspersky, Avast, AVG, Bitdefender) | Stripe form (HTTPS inspection) | Disable browser-level antivirus features for `simplyprint.io` |
| **Custom company / school extension** | Anything | Disable it for testing |

## How to whitelist SimplyPrint without losing your extensions
Most users don't want to fully disable their privacy extensions. You don't have to.

- **uBlock Origin / AdBlock / Brave Shields:** click the toolbar icon → toggle off for this site only.
- **Privacy Badger:** click the icon → switch sliders for `simplyprint.io` (and `cloudflare.com`, `crisp.chat` if you use chat) to green.
- **NoScript:** click the icon → mark `simplyprint.io` as Trusted.

The extension stays active everywhere else. Only SimplyPrint gets through.

## We're not asking you to disable privacy tools
SimplyPrint has no Google Analytics, no Facebook pixels, no tracking pixels, and we don't sell data. Extensions block us because they over-block third parties (Stripe, Cloudflare, Crisp), not because we're tracking you.

## Related
- [SimplyPrint won't load: blank screen, spinner, or stuck on login](https://help.simplyprint.io/en/article/simplyprint-wont-load-blank-screen-spinner-or-stuck-on-login-t76abf/)
- [Stuck on loading? Clear cache, try incognito, or another browser](https://help.simplyprint.io/en/article/stuck-on-loading-clear-cache-try-incognito-or-another-browser-1v547e7/)
- [Can't add card or pay? Stripe payment form not loading](https://help.simplyprint.io/en/article/cant-add-card-or-pay-stripe-payment-form-not-loading-jsstripecom-blocked-10g4fbq/)
- [Send a debug report to SimplyPrint support](https://help.simplyprint.io/en/article/send-a-debug-report-to-simplyprint-support-when-nothing-else-works-azsvh0/)