Member Avatar for levijoseph

Can any one share most useful Add-ons of Mozilla Firefox?

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Posts from , , and fall into four practical categories: developer/inspection helpers, privacy/script/cookie controls, visual utilities (color/picker), and tab/window management. Since this thread was started years ago, the Firefox extension landscape has changed a lot; the most useful choice today depends first on compatibility and maintenance, then on features.

A short, practical selection checklist:

  • Prefer extensions implemented as WebExtensions (official docs: WebExtensions).
  • Verify an add-on on Mozilla Add-ons for recent updates, active users, source code link, and current reviews.
  • Confirm that the needed capability is not already built into Firefox (developer tools and content/tracking protection are now much stronger—see MDN Tools and Firefox’s content-blocking info: Content Blocking).

Troubleshooting and maintenance notes drawn from the thread’s concerns:

  • If an add-on breaks pages or performance, disable all extensions via about:addons and re-enable one-by-one to isolate the culprit.
  • Use Troubleshoot Mode (add-ons disabled) to check whether Firefox itself or a profile is the issue, and consult the extension’s issue tracker or repository for fixes or maintained forks.
  • Keep the add-on list minimal and check requested permissions before installing to reduce security and stability risks.

These steps preserve the same productivity goals that contributors described while accounting for modern Firefox behavior and compatibility.

Recommended Answers

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Member Avatar for Octet

At the moment I am using, and would say they are really useful:

Firebug, a must have for web developers, allows you to inspect source code etc.

NoScript, you can selectively disable JavaScript on webpages, useful for long running or faulty scripts and adds a bit more security

Cookie Self-Destruct, destroys cookies when you close the tab to prevent tracking etc.

Edited by Octet because: Additional Formatting
Member Avatar for joshwold

Firebug Definately a lifesaver for me in debugging site UI and scripting.
Color Zilla Allows you to pick out colors from a site.

Member Avatar for CodeWeaver

Tile Tabs Allows you to view your tabs in tiles, thus allowing you to view them all at the same time
No Script Awesome, allows you to customize certain websites, best for manipulating youtube and google

Member Avatar for <M/>

Honestly... the best addon by far is firebug... i really don't use firefox that often... only if i want to have a "hands on" experience with a site's css :)

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