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What happened to Firebug for Firefox

Author

Mia Russell

Published Apr 18, 2026

3 Answers. Firebug was discontinued last year (2017). So it’s sad that Firebug is now reaching end-of-life in the Firefox browser, with the release of Firefox Quantum (version 57) next month. The good news is that all the capabilities of Firebug are now present in current Firefox Developer Tools.

Is Firebug no longer available?

Mozilla and the Firebug team announced today that development of Firebug as a separate Firefox add-on has been discontinued. Firebug, probably the most popular third-party development add-on for Firefox ever, has been available for Firefox for a very long time.

What is the latest version of Firebug?

The latest Firebug version on AMO is 2.0. 19.

What can I use instead of Firebug?

The best alternative is Firefox Developer Tools, which is both free and Open Source. Other great apps like Firebug are Google Chrome Developer Tools (Free, Open Source), HTTP Debugger (Paid), SplineTech Javascript Debugger (Paid) and Live HTTP Headers (Free).

How do I install Firebug on Firefox?

  1. In the Add-ons Manager page, enter FireBug in the search bar and hit the Install button.
  2. Install the Firebug.

How do I get Firebug theme?

  1. With a web page open, tap on F12 to display the Developer Tools interface.
  2. A click on the cogwheel icon in the upper right corner of the Developer Tools interface displays the preferences.
  3. Locate the themes section there, and select Firebug from the list of available themes.

Where do I find developer tools in Firefox?

You can open the Firefox Developer Tools from the menu by selecting Tools > Web Developer > Web Developer Tools or use the keyboard shortcut Ctrl + Shift + I or F12 on Windows and Linux, or Cmd + Opt + I on macOS.

How do I inspect the latest version of Firefox?

  1. Choose Tools > Web Developer > Inspector from the Menu Bar or the equivalent keyboard shortcut.
  2. Right-click an element on a web page and select Inspect Element.

How do I get Firebug?

How to Download FireBug. FireBug is a plugin that comes with Firefox browser, hence it is easily downloadable from Firefox itself. Go to Tools > Web Developer > Get More Tools.

Are firebugs pests?

Red fire bugs are nuisance pests because of the habit of congregating on buildings and plants and because they find ways to get into homes and other buildings. … — Insects in the true bug order can be easily drowned, especially the younger ones.

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Whats Firebug mean?

firebug. / (ˈfaɪəˌbʌɡ) / noun. informal a person who deliberately sets fire to property.

How do I open the debug console in Firefox?

  1. from the menu: select “Browser Console” from the Web Developer submenu in the Firefox Menu (or Tools menu if you display the menu bar or are on macOS).
  2. from the keyboard: press Ctrl + Shift + J (or Cmd + Shift + J on a Mac).

Is Firefox developer safe?

1 Answer. Yes, you can use the Firefox Developer Edition as your main browser but it has slightly different privacy and security properties. Most notably, Firefox Dev comes with additional development and debugging tools, some of them still experimental.

Can I use firebug with Chrome?

FIrebug was a chrome extension that was used before but now it is not supported and if you still want to use it then probably you will have to downgrade the chrome version. Firebug is discontinued open-source web browser extension. … There is another version i.e. Firebug Lite.

Where is XPath in Firefox without firebug?

Press F12, this opens the developer tools. Then click anywhere in the HTML structure and press Ctrl + F or Cmd + F if you’re on a Mac. In the search bar that appears you can search by XPath, Css selectors or strings. So if you type //div/div/form for example, you can immediately check if the XPath works.

How do I view the CSS of a website in Firefox?

To view user-agent styles (i.e., browser-default CSS rules), enable “Inspector > Show Browser Styles” under the developer tool settings panel.

How do I debug CSS in Firefox?

This Mozilla Firefox extension allows user to see outline on every element of the page. Hold the keyboard Ctrl button and hover element it will show the element details along with the value. Post installation simply click on the extension icon to turn it On or Off.

How do I edit an HTML file in Firefox?

You can edit the HTML — tags, attributes, and content — directly in the HTML pane: double-click the text you want to edit, change it, and press Enter to see the changes reflected immediately.

Are Red firebugs harmful?

They tend to form dense aggregations in the spring, and a person seeing those could presume that they were causing damage. They also pose no danger to humans.

What does a firebug look like?

Firebugs look very similar to boxelder bugs (Boisea trivittata). You will know you’ve found a firebug if it has a red body with two black dots on its back. Firebugs range in size from 6.5-12 mm (about the same size as a boxelder bug). They have prominent eyes that seem to come from their shoulders.

Can firebugs bite?

Red fire bugs will not bite, sting or eat food products, but they can stain carpet and other fabrics.

What is a firebug Chicago Fire?

: a person who starts destructive fires. See the full definition for firebug in the English Language Learners Dictionary.

What do you call a fire bug?

The firebug, Pyrrhocoris apterus, is a common insect of the family Pyrrhocoridae. Easily recognizable due to its striking red and black coloration, it may be confused with the similarly coloured though unrelated Corizus hyoscyami (cinnamon bug, squash bug) (see comparison).

How do I get flags on Firefox?

Mozilla Firefox To access Firefox’s advanced settings, type about:config into its address bar and press Enter. You’ll see a warning page.

How do I debug angular codes in Firefox?

  1. Click on Debugger to open the code section vis-a-vis the related file in which the code resides.
  2. Open up the file where the code which needs to be debugged exists. In the preceding screenshot, doctor. …
  3. Add one or more breakpoints.

What is different in Firefox Developer Edition?

Firefox Browser Developer Edition All the latest developer tools in beta, plus experimental features like the Multi-line Console Editor and WebSocket Inspector. … Preferences tailored for web developers: Browser and remote debugging are enabled by default, as are the dark theme and developer toolbar button.