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It also breaks add-on compatibility because it sets your user agent to the last ESR version of Firefox, which may be several versions behind the version you're

by Osmose 8y ago

It also breaks add-on compatibility because it sets your user agent to the last ESR version of Firefox, which may be several versions behind the version you're actually running.

kbrosnan 8y ago
That is resolved with 60.x ESR. First released in the early summer and has been the default since September. 52 had no support for webextensions
- Osmose 8y ago
  That's the compatibility issues for webextensions at all, but the bug still exists for extensions that declare compatibility ranges between the latest version and the previous ESR: https://bugzilla.mozilla.org/show_bug.cgi?id=1394448 https://bugzilla.mozilla.org/show_bug.cgi?id=1394448