Places enabled by default on trunk
Thanks to some hard work, the performance issues which required Places to be temporarily disabled have been fixed. The new bookmarking and history management system is now enabled by default in daily builds. Please feel free to start filing bugs about the new infrastructure against Firefox::Places (check for duplicates first). The user interface presentation is not final, please see the UI specification on the wiki, and feel free to review and join the ongoing discussion about those plans.
If you want to build without places you’ll need to add ac_add_options --disable-places to your .mozconfig file. This build option will be supported only for the next week or so until all regressions have been fully examined and fixed.
As a reminder, while there are no remaining bugs that report data loss, the migration from your profile’s bookmarks.html file into the database driven system is non-destructive. So if you end up losing data, simply erase the bookmarks_history.sqlite file from your profile and your old bookmarks and history will be re-imported from your bookmarks.html and history.dat files.