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

Installed Test Pilot - Tabs function and now Firefox is completely hosed

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by FredMcD

more options

Installed Test Pilot Experiments and when I got to the Tabs Center, now Firefox is all gray and the bottom bar is halfway cut off no matter what size I make the window. I tried several of my bookmarks and nothing is displayed, all gray. Even the options and add-on pages are all gray. BTW... I can't add an image from the button below (maybe because I am using Chrome? Icon just spins forever). OK, I found the 'Restart Firefox w/ Add-ons Disabled' in the Help menu. Did that and removed the Test Pilot, no change. It is gone but still just a gray screen in Firefox. I am trying to reload the Test Pilot and disable the Tabs Experiment but it has been saying installing for over 10 minutes now and nothing else is happening (no pop-up or such install is going on). Luckily I have Chrome installed so I can post this.

Installed Test Pilot Experiments and when I got to the Tabs Center, now Firefox is all gray and the bottom bar is halfway cut off no matter what size I make the window. I tried several of my bookmarks and nothing is displayed, all gray. Even the options and add-on pages are all gray. BTW... I can't add an image from the button below (maybe because I am using Chrome? Icon just spins forever). OK, I found the 'Restart Firefox w/ Add-ons Disabled' in the Help menu. Did that and removed the Test Pilot, no change. It is gone but still just a gray screen in Firefox. I am trying to reload the Test Pilot and disable the Tabs Experiment but it has been saying installing for over 10 minutes now and nothing else is happening (no pop-up or such install is going on). Luckily I have Chrome installed so I can post this.

All Replies (1)

more options

https://testpilot.firefox.com/ https://support.mozilla.org/en-US/kb/test-pilot-test-firefoxs-experimental-features SUMO community discussions; Firefox Test Pilot https://support.mozilla.org/en-US/forums/contributors/711977

Test Pilot is controlled from this page: https://testpilot.firefox.com/experiments/

From there you can disable the experiments one-by-one and also provide feedback about each feature that you disable.

Use the Settings button to access the menu for support and information about Test Pilot. https://discourse.mozilla-community.org/c/test-pilot