
SelectON — selection popup. Copy & search by emvaized
Customizable popup with actions on text selection, just like in Opera browser
You'll need Firefox to use this extension
Extension Metadata
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About this extension
● Copy or search any text in one click, just like in Opera browser
● Currency converter (supports 30+ currencies and 10+ crypto currencies)
● Basic units converter (metric/imperial)
● Contextual buttons depending on selected text, such as 'Open link', 'Translate', 'Show on map', CSS color preview and more
● Smart selection feature — automatic snapping by words, so you'll never lose that last letter again
● Customizable appearance for the tooltip, and ability to set custom text selection color
● Selection handles, which allow to quickly edit text selection
● Live translation of the selected text on hovering the "Translate" button
● Dictionary button, which fetches definition from Wikipedia on hover
● Highlighter button, which allows to highlight specific text on page
● Instant word and symbols count in the text selection
...and many more
SelectON does not collect, store or share any personal data, and will always remain open-source as a guarantee of it. If you want to financially support the project, you can find the Ko-Fi link on GitHub page or in the extension options.
● Currency converter (supports 30+ currencies and 10+ crypto currencies)
● Basic units converter (metric/imperial)
● Contextual buttons depending on selected text, such as 'Open link', 'Translate', 'Show on map', CSS color preview and more
● Smart selection feature — automatic snapping by words, so you'll never lose that last letter again
● Customizable appearance for the tooltip, and ability to set custom text selection color
● Selection handles, which allow to quickly edit text selection
● Live translation of the selected text on hovering the "Translate" button
● Dictionary button, which fetches definition from Wikipedia on hover
● Highlighter button, which allows to highlight specific text on page
● Instant word and symbols count in the text selection
...and many more
SelectON does not collect, store or share any personal data, and will always remain open-source as a guarantee of it. If you want to financially support the project, you can find the Ko-Fi link on GitHub page or in the extension options.
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PermissionsLearn more
Required permissions:
- Get data from the clipboard
- Display notifications to you
- Access your data for all websites
Optional permissions:
- Access your data for sites in the wikipedia.org domain
- Access your data for translate.googleapis.com
- Access your data for api.exchangerate.host
- Access your data for min-api.cryptocompare.com
More information
- Add-on Links
- Version
- 3.9.7
- Size
- 154.56 KB
- Last updated
- a day ago (Jun 21, 2025)
- Related Categories
- License
- MIT License
- Version History
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Release notes for 3.9.7
- Implemented "scroll to selected text" button in the floating off-screen tooltip, and enabled it by default (along with "recreating tooltip after scroll")
- Added option to hide tooltip on context menu open (enabled by default)
- Changed default tooltip position setting to "over cursor"
- Improved snapping text selection by words
- Improved detection of special symbols in the text selection
- Changed default favicon for "Search on Amazon" button
- Made tooltip arrow and info panel more compact
- Improved compatibility with drag-and-drop feature of Open in Popup Window extension
- Fixed issues when DeepL translate sometimes does not grab the selected text from the page
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