Firefox re-allow `alerts`?
Solution 1:
To re-allow alerts in the Firefox website:
-
Enter the website
-
Show website info:
- If the menu is enabled, click Tools > Page Info
- If the menu is disabled, press Ctrl+I
-
Click Permissions
-
Next to the "Open pop-up windows" permission, uncheck "Use Default"
-
Click Allow
-
Restart Firefox (for me it didn't work without it).