This talk was held at the Think About! Conference 2019 in Cologne, Germany. Think About! is a two-day community event about technology, design and their impacts on society: think-about.io
Mozilla Addons - one of the oldest websites @ Mozilla has gone through major changes throughout its lifetime. Starting in ~2005, the site as been more or less maintained. Only in recent years, it got much more traction because of Firefox Quantum and Mozilla's move to WebExtensions.
The talk will show our approach to maintaining very old code, balancing new features against code quality as well as technical debt.