Uploaded November 2024 | Updated September 2026, 2 weeks ago
This vid lists Compatibility Issues Between uBlock Origin and Firefox.
i. Here are some known issues with uBlock Origin on Firefox and their fixes:
### Known Issues and Fixes
1. **uBlock Origin Popup UI Not Displaying**:
- **Issue**: The popup UI of uBlock Origin is not showing up.
- **Fix**: Go to `about:config` in the address bar, click "I'll be careful, I promise!", search for `ublock0`, and set `extensions.ublock0.forceLegacyToolbarButton` to `true`. Restart Firefox.
2. **Missing Icons in Popup UI**:
- **Issue**: Icons are missing from the popup UI.
- **Fix**: If you're using a Linux system, go to Edit - Settings - Content and choose a default font other than "serif". "Liberation" and "Clear" are known to work. If the icons are still not showing, enter `about:config`, search for `fonts`, ensure `gfx.downloadable_fonts.enabled` is set to `true`, and check if the icons appear.
3. **Links to Social Networks Blocked**:
- **Issue**: Links to social networks are being blocked.
- **Fix**: This is likely due to the "Fanboy’s Social Blocking List" being enabled. Disable this list or any other filter list that includes it.
4. **False Positive from Antivirus**:
- **Issue**: Antivirus flags uBlock Origin as malware.
- **Fix**: This is due to uBlock Origin shipping with malware filter lists. Ensure your antivirus software is up-to-date and consider adding uBlock Origin as an exception.
5. **uBlock Origin Uninstalling Itself**:
- **Issue**: uBlock Origin is uninstalling itself.
- **Fix**: This could be caused by a false positive from your antivirus application. Check your antivirus settings and add uBlock Origin as an exception.
6. **uBlock Origin Not Blocking Ads**:
- **Issue**: uBlock Origin has stopped blocking ads.
- **Fix**: Ensure your Firefox browser is up-to-date. Disable and re-enable the extension. Check for any interference from other extensions.
7. **Browser Lock-Up on Yahoo**:
- **Issue**: uBlock Origin causes Firefox to lock up on Yahoo.
- **Fix**: Open the logger tool in uBlock Origin to see what is being blocked. If the tab locks up before you can use the logger, try disabling uBlock Origin temporarily to see if the issue persists.
These fixes should help resolve common issues with uBlock Origin on Firefox.
This vid lists Compatibility Issues Between uBlock Origin and Firefox.
i. Here are some known issues with uBlock Origin on Firefox and their fixes:
### Known Issues and Fixes
1. **uBlock Origin Popup UI Not Displaying**:
- **Issue**: The popup UI of uBlock Origin is not showing up.
- **Fix**: Go to `about:config` in the address bar, click "I'll be careful, I promise!", search for `ublock0`, and set `extensions.ublock0.forceLegacyToolbarButton` to `true`. Restart Firefox.
2. **Missing Icons in Popup UI**:
- **Issue**: Icons are missing from the popup UI.
- **Fix**: If you're using a Linux system, go to Edit - Settings - Content and choose a default font other than "serif". "Liberation" and "Clear" are known to work. If the icons are still not showing, enter `about:config`, search for `fonts`, ensure `gfx.downloadable_fonts.enabled` is set to `true`, and check if the icons appear.
3. **Links to Social Networks Blocked**:
- **Issue**: Links to social networks are being blocked.
- **Fix**: This is likely due to the "Fanboy’s Social Blocking List" being enabled. Disable this list or any other filter list that includes it.
4. **False Positive from Antivirus**:
- **Issue**: Antivirus flags uBlock Origin as malware.
- **Fix**: This is due to uBlock Origin shipping with malware filter lists. Ensure your antivirus software is up-to-date and consider adding uBlock Origin as an exception.
5. **uBlock Origin Uninstalling Itself**:
- **Issue**: uBlock Origin is uninstalling itself.
- **Fix**: This could be caused by a false positive from your antivirus application. Check your antivirus settings and add uBlock Origin as an exception.
6. **uBlock Origin Not Blocking Ads**:
- **Issue**: uBlock Origin has stopped blocking ads.
- **Fix**: Ensure your Firefox browser is up-to-date. Disable and re-enable the extension. Check for any interference from other extensions.
7. **Browser Lock-Up on Yahoo**:
- **Issue**: uBlock Origin causes Firefox to lock up on Yahoo.
- **Fix**: Open the logger tool in uBlock Origin to see what is being blocked. If the tab locks up before you can use the logger, try disabling uBlock Origin temporarily to see if the issue persists.
These fixes should help resolve common issues with uBlock Origin on Firefox.
