How do I run a script in Firefox?

Select Settings menu (3 horizontal lines ≡ icon in the upper right corner) -> Web Developer -> Scratchpad. Click the Run button on the Scratchpad toolbar to run your JavaScript code.

How do I run a snippet in Firefox?

To execute the snippet that is currently in the editing pane, click the Run button or press Ctrl + Enter (or Cmd + Return on MacOS). The snippet is echoed under the input prompt (in the right-side pane), followed by the result.

How do I install a DMG file in Firefox?

1. Open Safari from your Dock.
2. Select Download now.
3. Select Firefox. dmg from Downloads.
4. Drag the Firefox App into your Applications folder.
5. Once it has finished copying, eject the disk image for Firefox from your desktop by dragging it to Trash.
6. Open Firefox.
7. You’ll be asked for permission to run Firefox, select Open.

How do I enable JavaScript on Firefox Mac?

In Firefox for Mac OS X, from the Firefox menu, select Preferences…. Click the Content tab. Check or uncheck Enable JavaScript.

Does Firefox have snippets like Chrome?

Firefox has multiline support using the scratchpad editor, and Chrome has a new ‘snippets’ feature. Currently, in Chrome you have to enable snippets support in chrome://flags and inside of devtools settings (see full instructions and screenshots).

What happened to Firefox scratchpad?

Scratchpad is deprecated as of Firefox 70 (bug 1565380), and will be removed as of Firefox 72 (bug 1519103).

What is running script on a computer?

In most cases, the script that the long-running script message references is a piece of JavaScript code that your internet browser is trying to execute. JavaScript is used to improve your browsing experience as it allows different functionality to be possible on the websites that you visit.

How do I run JavaScript on Mac?

In the Shortcuts app on your Mac, double-click a shortcut. In the shortcut editor, click at the top of the action list, begin typing “Run JavaScript…” in the search field, then double-click the Run JavaScript on Active Safari Tab action to add it to the shortcut editor.

How do I run code snippets?

Run a Snippet with the Command Menu

1. Focus your cursor somewhere in DevTools.
2. Press Ctrl + Shift + P (Windows, Linux) or Command + Shift + P (macOS) to open the Command Menu.
3. Delete the > character and type the ! character followed by the name of the Snippet that you want to run:
4. Press Enter to run the Snippet.

How do I open Scratchpad in Chrome?

Run Scratchpad from Bookmarks Bar by clicking the wrench icon.) (The long string is the program ID of Scratchpad in the Chrome Web Store.) If the Chrome version is too not old, we can also access Scratchpad this way on the New Tab page by middle-clicking the Scratchpad icon (or Ctrl + Left click).