The automated type adjusting of new imipbar buttons is currently broken. There is a related error log message and I already have a fix for this. Due to a system crash it may take some days to provide it.

Could you please provide the related error message here or add it to the summary to ensure this bug shows up when searching using the error message as input.

When your systems are up again, maybe it would make sense to write a mozmill test for this too.

If the merge alreday was done, requesting approval for aurora as well.

Forgot to post the error message: [JavaScript Error: "[Exception... "[JavaScript Error: "document.getElementById(...) is null" {file: "chrome://lightning/content/imip-bar.js" line: 138}]'[JavaScript Error: "document.getElementById(...) is null" {file: "chrome://lightning/content/imip-bar.js" line: 138}]' when calling method: [calIOperationListener::onOperationComplete]" nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)" location: "JS frame :: file:///C:/Mozilla/Debugging/Thunderbird/Profiles/unstable/central/Test-central-en/extensions/%7Be2fda1a4-762b-4020-b5ad-a41df1933103%7D/components/calCompositeCalendar.js :: calCompositeGetListenerHelper.prototype.onOperationComplete :: line 520" data: yes]"]

Comment on attachment 8414452 [details] [diff] [review] FixBrokenAutomatedImipBarButtonAdjusting-V1.diff Review of attachment 8414452 [details] [diff] [review]: ----------------------------------------------------------------- r/a=philipp

Could you file a new bug to write a mozmill test for this?

Done, see bug 1003207. And sorry for the typo ;-)

https://hg.mozilla.org/comm-central/rev/65dd73825280 https://hg.mozilla.org/releases/comm-aurora/rev/287d35b00ecf