: In the search bar at the top of the page, type javascript.enabled . Toggle the Value : Look at the "Value" column. If it says true , JavaScript is already enabled.
: Sometimes outdated versions of Firefox may have trouble running modern JavaScript features. Check for updates by going to Menu > Help > About Firefox . javascript download firefox
: Corrupted temporary files can cause script errors. You can clear these in Settings > Privacy & Security > Cookies and Site Data . Why You Don't Need a "JavaScript Download" : In the search bar at the top of the page, type javascript
If the setting above is already true but websites still claim JavaScript is missing, try these solutions: try these solutions: