FT's bloated ads are constantly causing non-responsive script errors in Firefox (ESR version 44.0.2) resulting in slow loading and eventually a complete crash of Firefox. This has gotten much worse in the last 3 weeks! I am in the US using a Mac with OS 10.11.2, 16 gigs of ram. I primarily visit Marriott Rewards in the Miles & Points forum and the problem occurs most often when trying to read posts (MR main page loads slowly, but does not get hung up.) The ads trying to load are Marriott Rewards Chase Visa, Marriott Hawaii, and South Africa.
I also similar issues using Safari, FT will just hang and then I will receive a failure to connect message.
I have been on FT for 13 years and only recently have I had this problem. I browse FT daily and this is very frustrating. Please fix or remove the bloated ads!