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How can two icons, the 'add to taskbar' icon and the 'picture in a picture' icon, be removed from the address bar?

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These icons appeared recently in my Firefox browser I can't remove them. The only recent changes included uninstalling SuperAntiSpyware after finding that Microsoft PC Manager is a better option, which has performed excellently without issues.

Additionally, a free VPN (Proton) was briefly used from the Firefox browser without installation, but after finding it complicated to set up, it was deleted. A few hours later, I noticed the two icons as the windows were misbehaving and they are causing a slowdown in the PC's performance. They do not seem to be add-ons or extensions.

How do I remove the icons and return to the previous performance?

These icons appeared recently in my Firefox browser I can't remove them. The only recent changes included uninstalling SuperAntiSpyware after finding that Microsoft PC Manager is a better option, which has performed excellently without issues. Additionally, a free VPN (Proton) was briefly used from the Firefox browser without installation, but after finding it complicated to set up, it was deleted. A few hours later, I noticed the two icons as the windows were misbehaving and they are causing a slowdown in the PC's performance. They do not seem to be add-ons or extensions. How do I remove the icons and return to the previous performance?
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Hi, thank you for replying.

I changed the About:config setting for PIP to false and restarted Firefox. The PIP icon was gone but an icon to Toggle Reader view had replaced it.

I see don't understand about the Add to Taskbar icon. Should it be switched off in Taskbar?

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Hello

About, Add tab to taskbar. Take a look at the video https://connect.mozilla.org/t5/discussions/where-s-firefox-going-next-you-tell-us/m-p/103478/highlight/true#M40173

About, Firefox Reader View for clutter-free web pages. https://support.mozilla.org/en-US/kb/firefox-reader-view-clutter-free-web-pages

https://support.mozilla.org/en-US/questions/1533751#answer-1762060 For information purposes, reader.parse-on-load.enabled.

Modified by Agent virtuel

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Thank you for your assistance.

Everything is now back to normal. I may toggle on reader view as it is good for reading articles on a busy page. The secret of trying new features is to be able to remove them if they do not suit.

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From another thread, to hide the "add tab to taskbar" icon in the address bar: Type about:config in the address bar and change browser.taskbarTabs.enabled to false.

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Hello

For information purposes. https://connect.mozilla.org/t5/firefox-labs/give-web-apps-in-firefox-a-try-on-labs-and-tell-us-what-you/m-p/105038/highlight/true#M4697

Below, Firefox 143 release, the preference, browser.taskbarTabs.enabled, set to true, by defaut.

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