Skip the lighter fluid, naptha. It is more aggressive and hazardous than you need it to be.

Common cooking oil will do the job. Apply it sparingly with a cloth rag and rub a bit. You will be surprised how fast it dissolves the stickum. Once the glue is gone wipe the area clean with a paper towel. The only material you don't want to use it on is natural rubber. Almost all modern insulation on wires is PVC, nylon or Kynar. None of these are damaged by the oil. You can use it on painted surfaces but wipe it off well because if it pools or is allowed to stay in quantity it will peel the paint. Brake fluid, essentially glorified vegetable oil, similarly damages paint if it isn't removed.

Naptha will degloss paint and attacks many more plastics. And it is a significant fire hazard around electrical equipment.

Any cooking oil or margarine will work.