Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

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

How to reduce default tab size

  • 2 replies
  • 0 have this problem
  • 4451 views
  • Last reply by cor-el

more options

Hi, i would like to reduce the default tab size, how do i do that?

Hi, i would like to reduce the default tab size, how do i do that?
Attached screenshots

Chosen solution

That would involve overriding this rule via code in userChrome.css. Note that you need to add the !important flag.

.tabbrowser-tab:not([pinned]) { max-width: 150px !important; }

See also:

.tabbrowser-tab:not([pinned]) {
  flex: 100 100;
  max-width: 225px;
  min-width: var(--tab-min-width);
  transition: min-width 100ms ease-out,
              max-width 100ms ease-out;
}

Read this answer in context 👍 0

All Replies (2)

more options

Hi. Assuming you mean the width, enter about:config in the address bar and change the value in the following preference. browser.tabs.tabMinWidth The minimum you can set is 50.

https://support.mozilla.org/en-US/kb/about-config-editor-firefox

more options

Chosen Solution

That would involve overriding this rule via code in userChrome.css. Note that you need to add the !important flag.

.tabbrowser-tab:not([pinned]) { max-width: 150px !important; }

See also:

.tabbrowser-tab:not([pinned]) {
  flex: 100 100;
  max-width: 225px;
  min-width: var(--tab-min-width);
  transition: min-width 100ms ease-out,
              max-width 100ms ease-out;
}