This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Lags whenever I tried to use Web Developer Tools

  • 1 antwoord
  • 0 hierdie probleem
  • 3 views
  • Laaste antwoord deur cor-el

more options

Firefox slows down when I use web developer tools, I use this whenever I try to save an image on Instagram or other sites that I go to just to save an image or look for the video using the web tools.

Is there a way to fix this issue it lags the browser or it freezes for a second.

Firefox slows down when I use web developer tools, I use this whenever I try to save an image on Instagram or other sites that I go to just to save an image or look for the video using the web tools. Is there a way to fix this issue it lags the browser or it freezes for a second.

All Replies (1)

more options

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window