Bug 1142171 introduced a "split pane" variant of the history panel (tablet + landscape). In this new version the user's history is split into different sections (Today, Yesterday, Last 7 days, ..). Currently we are limiting the number of items per section to 100 [1]. Potentially this limitation introduces gaps in history. For example: * Today has more than 100 items and is cut off * Yesterday 50 items -> Gap between today's 100+ and yesterday -> Last 7 days just shows today in this case This bug is for investigating: * Could we raise the limit to make gaps more unlikely? * Could we even drop the limit (at least for some sections) because the query is already limited by time * Is the Cursor based implementation stable enough to support more items? * How do slow/old devices perform? [1]: https://dxr.mozilla.org/mozilla-central/rev/e5effeb8e57ceddf679f7784faab0c2cebb1e1e6/mobile/android/base/home/HistoryPanel.java?offset=0#420

I think we should consider dropping the limit. A lot has changed since the original implementation, so it might be worth going through history to see why we decided to have this limit in the first place.

The combined history panel seems to use a total limit and then displays the section dividers as necessary.