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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2 versions withdrawn
withdrawn after publishing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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One column per quarter.
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`eeb1dfa4f` #3810 - Add ability to configure the SDK to communicate with the Firebase Auth emulator.
4f997bce1 #3724 - Adds a new experimentalAutoDetectLongPolling to FirestoreSettings. When
enabled, the SDK's underlying transport (WebChannel) automatically detects if
long-polling should be used. This is very similar to
experimentalForceLongPolling, but only uses long-polling if required.Added a new experimentalAutoDetectLongPolling to FirestoreSettings . When enabled, the SDK's underlying transport layer automatically detects if long-polling should be used. This is very similar to experimentalForceLongPolling , but only uses long-polling if required.
Fixed a potential issue in our internal queue that could have allowed API calls to be executed out of order.
Changed to not delete the uid property from user auth object in initializeTestApp() . See GitHub issue #3920 .
Fixed the typing for custom claims.
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`d4db75ff8` #3836 (fixes #3573) - Analytics now warns instead of throwing if it detects a browser environment where analytics does not work.
d4db75ff8 #3836 (fixes #3573) - Analytics now warns instead of throwing if it detects a browser environment where analytics does not work.Moved the loggingEnabled check to wait until performance initialization finishes, which prevents the SDK from dropping custom traces right after getting the performance object.
Throws an exception when startTime or duration is not a positive value in the trace.record() API.
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Updated dependencies [`b6b1fd95c`]:
b6b1fd95c]:
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