About setting application volume

Hello, Is there any way that whenever I start my browser it automatically remembers the last volume I have adjusted?
The problem is that on one site volume is to low so first thing I did that to set my application volume beyond 100 but the problem is that every time I low the volume it automatically goes to 100% and whenever I click on next episode. I have tried to use pulsevolumecontrol It gives me the option to raise firefox volume but it automatically goes to 100% when i decrease the volume

PulseAudio used to have a setting flat-volumes=yes that would reset audio playback streams to 100%. This made a lot of people very angry and is widely regarded as a bad move

Many distributions including Manjaro would change the default setting to flat-volumes=no
until PulseAudio developers changed the setting at source
PulseAudio 14.0 release notes - Flat volumes are now disabled by default

Use this command to check PulseAudio configuration

pulseaudio --dump-conf | grep flat