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npm · #4157 most downloaded on npm
Firebase JavaScript library for web and Node.js
Last release today
06 Oct 2026
Ships on a steady schedule
a new release about every 3 weeks
Nearly every release is documented
notes for 60 of the last 60 stable releases
2 versions withdrawn
withdrawn after publishing
15 years old
4222 releases · first in 2012
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The SDK no longer throws an error on duplicate service registration. This simplifies cases when multiple components each internally depend on another
One column per quarter.
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When parsing the Realtime Database URL, the ns URL query parameter will be treated as the default Realtime Database namespace name.
When parsing the Realtime Database URL, the ns URL query parameter will be treated as the default Realtime Database namespace name.
Fixed an issue that caused .info/serverTimeOffset events not to fire.
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Fixed an issue where cached redirect results were not cleared after calling signOut() or getRedirectResult() .
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Fixed an issue where multi-byte UTF-8 characters were not written correctly when using firebase.js or firebase-database.js .
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Fixed a regression introduced in v6.3.2 causing errors when run in a browser environment.
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Caution: SDK version 6.3.2 has a serious issue in Realtime Database API support. If your app uses Realtime Database , immediately upgrade to 6.3.3 or
Caution: SDK version 6.3.2 has a serious issue in Realtime Database API support. If your app uses Realtime Database , immediately upgrade to 6.3.3 or higher.
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