about:tor page is not loading in pre-nightly Tor Browser builds based on ESR60
Testing a pre-nightly Tor Browser build based on ESR60 it turns out the
about:tor page is not loading. In the error console exceptions are thrown:
[Exception... "Component returned failure code: 0x80004004 (NS_ERROR_ABORT) [nsIPrefBranch.getComplexValue]" nsresult: "0x80004004 (NS_ERROR_ABORT)" location: "JS frame :: jar:file:///path/to/tor-browser/tor-browser_en-US/Browser/browser/omni.ja!/components/nsBrowserContentHandler.js :: get startPage :: line 660" data: no]
I guess, not treating that
browser.startup.homepage as preference with a complex value is not working as well as we thought.
(However, it worked while I was testing the patch for #26100 (moved) for some reason).