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After updating to Firefox 40.0.2 three separator lines appear in "Show your history"

Firefox Settings
user1243432 replied 11 years ago
user1243432
user1243432

After updating to FF 40.0.2 three separator lines appeared in "Show your history". And they remain there even if history is cleared.

After updating to FF 40.0.2 three separator lines appeared in "Show your history". And they remain there even if history is cleared.
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user1243432
user1243432 Question owner

Chosen Solution

The three separator lines appear in "show your history" if the string "identity.fxaccounts.remote.webchannel.uri" has blank value. If set to default (https://accounts.firefox.com/) after restarting FF three lines disappear.

I believe this string was either absent or undefined in previous versions of FF.

If I understand correctly the FxAccountsWebChannel listens for some kind of events.