Works very well for me on r3dfox/Firefox 144.0.1. I appreciate a lot the feature to load desired window size and position at startup as there's a bug on Firefox that doesn't allow it to remember these. With this extension it can be fixed and that's really enjoyable. Thanks to the dev!

Pues no sabía que se podían agregar vistas personalizadas y atajos de teclado para cada una. Para pantallas grandes está muy bien. Otro de mis imprescindibles.

Only % not px

Useless, did not work for me. By the way any one can move browser window to the left right bottom top just by using the windows short cuts. We need some thing to customize the size and position to our needs which this addon does not do at all.

Great beginning! Does what it says it will do. But there's room for improvement! ¶ (0) Make current selections editable. ¶ (1) Display the settings for the current selections with the percentages listed in the same order as the "Add" dialog - i.e. the current selections use (Top, Left) - (Bottom, Right) and the dialog order is Left, Right, Top, Bottom. ¶ (2) When clicking a selection, resize the window on the monitor on which the window is located - I have between 2 to 5 monitors (depending on what task(s) I'm working on) and the resized window ALWAYS jumps to my main monitor!