So whilst browsing Testermans.co.uk I noticed the prices were hugely inflated. With KPM enabled in Firefox and Edge prices are crazy and simply disabling the addon reverts them to normal.
I have tried clearing the cache etc and reinstalling the addon but it persists? Would like to get to the bottom of this! I tried contacting the website developers but they could not recreate the fault and seems to think it’s a local issue.
If anyone could test this out and let me know if it’s happening to anyone else it would be appreciated! :)
just click this link to test : "https://testermans.co.uk/product-category/electrical/electrical-testing-equipment/multifunction-testers/multifunction-tester/"
Examples below, prices of exactly the same item with KPM disabled/enabled