What's new in v1.3.0
$180/oz bug — root cause and fix:
The bug was the standalone regex grabbing the first unit match in a title rather than the most relevant one. "Protein Powder 2g sugar 2 lbs" matched 2g (2 grams → $424/oz) instead of 2 lbs (907g → $0.94/oz). Two-layer fix: expanded the nutrition stripper to catch "Xg sugar", "Xg fat", "serving size Xg", etc., AND changed the standalone matcher to collect all unit candidates and pick the largest total quantity — so even if stripping misses something, the bigger number always wins.
Custom target quantities — three number inputs in the popup. Set per 500ml for water comparisons, per 16 oz to match a specific container size, per 100g for metric, or leave blank for smart defaults. Resets automatically when switching between Imperial and Metric.
Best Value panel — the popup now shows the winning product from your current Amazon search page: product name, price, unit rate, and the quantity it parsed from the title. If you have mass, volume, and count results on the same page, tabs let you flip between them. Stays fresh for 2 hours then prompts you to reload.

Fixed several bugs.