Troubleshooting
FILE NO. 018
REV. 2026–08
REV. 2026–08
QUICK TROUBLESHOOTING FLOWCHART
Site looks broken
→
Hard reload the page
→
Still broken?
Disable blocker for this site
→
Reload again
→
Still broken? Try your backup browser
FROM: CHOOSE YOUR BROWSER
BROWSER & LINEUP ISSUES
| PROBLEM | LIKELY CAUSE | SOLUTION |
|---|---|---|
| A site logs me out constantly | You're using a throwaway/clean browser for logins | Log into that account from your main browser only, per the 3-browser lineup |
| A browser feels slow after switching | Tor Browser or a heavily hardened setup | Expected trade-off for anonymity; use a faster browser for everyday, low-risk browsing |
| A site says my browser is unsupported | Older browser detection scripts don't recognize LibreWolf/Mullvad's user agent | Try your backup browser for that one site |
FROM: SET UP YOUR BROWSER
WHEN SITES BREAK
| PROBLEM | LIKELY CAUSE | SOLUTION |
|---|---|---|
| Video won't play | Ad blocker blocking video player | Disable uBlock Origin for that site temporarily, or whitelist just the video domain |
| Login button does nothing | Script blocked by uBlock Origin | Click the uBlock icon → toggle "Disable on this site" |
| Page loads blank | Overly aggressive protection | Use your backup browser for this site, or temporarily switch protection to "Standard" |
| Comments or reviews missing | Third-party scripts blocked | Check for a site "privacy mode" setting; some sites detect blockers and hide content |
| CAPTCHA loop (infinite puzzles) | Privacy settings interfering with CAPTCHA | Enable "Temporary allow all" in uBlock Origin for that session |
| Payments failing | Payment processor script blocked | Whitelist the payment domain, e.g. *.stripe.com or *.braintree.com |
How to Whitelist a Site
- Click the uBlock Origin icon in your toolbar.
- Click the large power button to disable blocking on the current site only.
- Reload the page — the site reactivates its scripts immediately.
- If only one feature is broken (like a video or a login), prefer disabling the specific tracker/script instead of the whole page — click the icon, open the dashboard, and unblock the single domain causing the issue.
- Whitelisting is per-site and persists until you toggle it back — review your whitelist occasionally and remove sites you no longer trust.
FROM: ADVANCED CONFIGURATIONS
FINGERPRINTING & TOOL ISSUES
| PROBLEM | LIKELY CAUSE | SOLUTION |
|---|---|---|
| Fingerprint test still says "unique" | Strict/randomization setting not actually enabled | Re-check Enhanced Tracking Protection (Firefox) or Shields (Brave), then retest |
| Password manager won't autofill | Browser's built-in password manager conflicting with the extension | Disable your browser's native password manager per the Password Managers setup step |
| DNS filtering blocks a site I need | Overly aggressive DNS-level blocklist | Whitelist the domain in your NextDNS/ControlD/AdGuard DNS dashboard |
FROM: TEST & VERIFY
TEST SUITE ISSUES
| PROBLEM | LIKELY CAUSE | SOLUTION |
|---|---|---|
| "GPC signal detected" doesn't show | Browser doesn't support GPC, or it's off | Safari and stock Chrome don't support it natively; switch to Brave, Firefox, or LibreWolf |
| DNS leak test shows my ISP | VPN or private DNS not actually active during the test | Confirm your VPN/DNS provider is connected, then rerun the test |
| Ad-blocker test shows slots as "not blocked" | Extension disabled on that domain, or filter list out of date | Re-enable on the domain and update filter lists from the extension's dashboard |