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Missing new tab button on tab (tool) bar | Firefox ESR 52

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  • Last reply by nuwon

nuwon
nuwon
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After a fresh install of Firefox ESR 52.8.1 (because I want some old add-ons) on Windows 10, there was no New Tab button in the Tabs toolbar.

Using the customize option enabled me to drag the "+" button to the menu bar, but not the tab toolbar. I prefer the latter because the button is always where it's needed, minimising the need for mouse movement.

After a fresh install of Firefox ESR 52.8.1 (because I want some old add-ons) on Windows 10, there was no New Tab button in the Tabs toolbar. Using the customize option enabled me to drag the "+" button to the menu bar, but not the tab toolbar. I prefer the latter because the button is always where it's needed, minimising the need for mouse movement.

Chosen solution

After some comparison with Firefox of different versions on different systems, I found a solution:

Within "about;config", there is the "browser.uiCustomization.state" preference which is a string type, and which contains quite a long string of various settings.

Within the string is a TabsToolbar setting which can be replaced with the following in order to restore the missing "+" button on the tabs toolbar:

"TabsToolbar":["tabbrowser-tabs","new-tab-button","alltabs-button"]

By replacing the entire existing sub-string of "TabsToolbar" with the above, the "+" button was restored.

It's easiest to copy the entire string to an editor, and replace the sub-string within the editor and then copy the entire string back to about: config.

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nuwon
nuwon Question owner
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Seçilmiş Həll

After some comparison with Firefox of different versions on different systems, I found a solution:

Within "about;config", there is the "browser.uiCustomization.state" preference which is a string type, and which contains quite a long string of various settings.

Within the string is a TabsToolbar setting which can be replaced with the following in order to restore the missing "+" button on the tabs toolbar:

"TabsToolbar":["tabbrowser-tabs","new-tab-button","alltabs-button"]

By replacing the entire existing sub-string of "TabsToolbar" with the above, the "+" button was restored.

It's easiest to copy the entire string to an editor, and replace the sub-string within the editor and then copy the entire string back to about: config.

Modified by nuwon