Add-ons for Designers

Some plugins are especially useful for designers:

• Dust-Me Selectors: for Firefox, reports CSS selectors which aren’t used.
• Web Developer: for Firefox and Chrome, offers many functions helpful in analyzing pages and their problems.

Firefox and NPAPI

Starting with version 52, Firefox has ended NPAPI plugin support (except for Adobe Flash), and so many plugins no longer work with Firefox. Support for NPAPI plugins continues, however, in Firefox 52 ESR. More⮞