Place the chicken thighs in the bottom of the slow cooker in a single layer.
Pour the coconut milk over the chicken, then add the red curry paste, fish sauce, brown sugar, garlic, ginger, and lime juice.
Stir gently to combine the sauce ingredients around the chicken.
Scatter the sliced red bell pepper on top.
Cover and cook on low for 6 hours or on high for 3 to 4 hours, until the chicken is very tender.
Serve the chicken and sauce over jasmine rice, topped with fresh cilantro and lime wedges.