>well for their own fun rewriting the browser and rendering engine several times, I guess it was fun at least doing "interesting things". Go on, install Firefo

>well for their own fun rewriting the browser and rendering engine several times, I guess it was fun at least doing "interesting things". Go on, install Firefox 3. Go see how absolutely _awful_ it was with multiple tabs open. How a single page would freeze the entire browser. How extensions broke XUL when the slightest thing went wrong. Rewriting the renderer is not something done for fun. It was necessary for the to be able to do per tab isolation, as well as a not broken security model. > Firefox is slow with many tabs open on Win10, Ryzen X3900 with 32gb of RAM (writing this from FF) I literally have 432 tabs open at the moment I'm typing this. Firefox has automatically unloaded about 400 of those and is only eating 3GB of RAM. Check your custom config if you have any, because you certainly have something wrong. Win10, Ryzen 1600X and 16GB.