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Preview of Tree Tab Picasso

Tree Tab Picasso by Lukasz Schabowski

Paint Tree Style Tab branches with 20 bold colors and emoji markers. Markers survive restarts.

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About this extension
Tree Tab Picasso paints your Tree Style Tab sidebar.

Right-click any tab and choose Tree Tab Picasso:

• Colors — pick one of 20 colors. The tab and all of its descendants get that color.
• Add Emoji… — put an emoji marker on one tab. Search, browse by category, or use recent emoji. Fully keyboard accessible.
• Clear Emoji / Clear Color / Clear Both — remove markers from a tab.
• Clear everything — remove all markers from all tabs.

Markers are saved with each tab, so they come back after a browser restart with session restore, and they go away when the tab is closed.

Requires Tree Style Tab (https://addons.mozilla.org/firefox/addon/tree-style-tab/). Firefox does not allow coloring tabs in the normal horizontal tab strip, so colors show in the Tree Style Tab sidebar.

Privacy: this add-on collects no data and makes no network requests.

Support and bug reports: https://github.com/shabo/ff-treetab-picasso/issues
Developer comments
Requires Tree Style Tab. Found a bug? Open an issue: https://github.com/shabo/ff-treetab-picasso/issues
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Permissions and data

Required permissions:

  • Display notifications to you
  • Access recently closed tabs

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
0.2.1
Size
137.48 KB
Last updated
4 days ago (Sep 25, 2026)
Related Categories
  • Tabs
License
Mozilla Public License 2.0
Version History
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