Diễn đàn hỗ trợ Firefox

I'm still running Firefox under Windows 7. I've now connected a new monitor with a resolution of 2660 x 1080 using an HDMI cable (previously DVI), and since then I've had major problems setting up websites. the websites are only partially built and I have to reload several times. Can you help me?

It is annoying that search executes immediately instead of triggering on enter keypress, especially when a web page is big. Is there any way to disable auto-search and trigger it only when you press enter?

If you want to understand better it's pretty similar to this VS Code issue.

FF doesn't reliably open my last session. It used to but for nearly 18 months now it has become hit and miss. I have FF docked on my taskbar (Win 7 sp1) when I click it some times it opens all my tabs (I have it set to do that) but more frequently it doesn't and just opens one tab. Usually I catch it and in history select the tab showing many other tabs and I get it all back, but this doesn't always work like today, no option to do that because there's nothing there. When is it likely to be fixed, I've been complaining about this for months. I've even suggested FF collects a stack of last sessions (say 20) each time a session is closed and have a fixed entry for that in the menu, but nothing seems to change. I'm heartily sick of it, it's such a basic requirement of any browser and yet with FF it's just a pain in the neck.