Hello Marko,

Thanks for contacting Mozilla Support.

You mentioned that you were using the window.open method and that resizeTo was no longer working. Have you tried specifying height/width with the window.open method?

http://www.w3schools.com/jsref/met_win_open.asp

Let me know if this works or if we can help further.

Cheers, Patrick

On Windows, you might be able to use the system script engine to launch a window and send it a resize (WM_SIZE) message. I don't know whether there is an equivalent on Linux.

Can a Greasemonkey userscript still use resizeTo()? If so, you might create a userscript that watches for a custom parameter in the page's window object (e.g., global object resizeParams) to know what size the window should be.

resizeTo() and moveTo() only work in tabs with XUL pages like about:addons, but not on normal tabs in the main window.
You can use the Web Console (Firefox/Tools > Web Developer;Ctrl+Shift+K) to run the command while such a XUL page is selected.

See also:

• [/questions/893034]
• [/questions/880032]

• Firesizer: https://addons.mozilla.org/firefox/addon/firesizer/

I was also thinking about writing a bash script to resize the window after it is open.

At first I tried it with devilspie. https://wiki.gnome.org/DevilsPie This utility is great. I wrote the rule, that windows with specific name should be resized. However this works only partially. The problem is that when firefox window is open it first gets the name "Firefox window" or something like that. When the page is loaded into the window, it changes the name to page title. That may be to late for devilspie. So, when I open the window it sometimes is resized and sometimes not. It depends whether Firefox manages to open the page and set the title before devilspie reads the title.

I will now try it with a script. The script will start firefox, wait a little and then resize the new window with wmctrl utility. http://tomas.styblo.name/wmctrl/ I can even run wmctrl before and after running firefox to identify the exact window which needs to be resized.

I have written a bash script that makes a list of windows, starts firefox and makes a list again. Then it finds the differences in lists from before and after opening firefox. At the end the script uses wmctrl to change window's size that was found as newly opened. There is a small chance that some other window might pop up while opening firefox and it will get resized too. However in our case that probability is very small and it is not worth the effort.

Here's the script which takes 3 parameters: width, height, URL.

#!/bin/bash

diff(){
  awk 'BEGIN{RS=ORS=" "}
       {NR==FNR?a[$0]++:a[$0]--}
       END{for(k in a)if(a[k])print k}' <(echo -n "${!1}") <(echo -n "${!2}")
}

window_count=$(wmctrl -l | wc -l)

windows=()

wmctrl -l > output

exec 0<output 


while read id type machine name

do

  windows=("${windows[@]}" "$id")

done

# width and height in this call are ignored if some other firefox window is already open

/usr/bin/firefox -P profile -width $1 -height $2 -new-window $3 &


new_window_count=$window_count

while [ "$window_count" -eq "$new_window_count" ]

do

  #echo waiting...

  sleep 1

  new_window_count=$(wmctrl -l | wc -l)

done


new_windows=()

wmctrl -l > output

exec 0<output while="" read="" id="" type="" machine="" name="" do="" new_windows='("${new_windows[@]}"' "$id")="" done="" differences="($(diff" windows[@]="" new_windows[@]))="" for="" i="" in="" "${differences[@]}"="" wmctrl="" -i="" -r="" $i="" -e="" 0,-1,-1,$1,$2="" <="" pre="">
done


I had to do some tweaking in the script to fool the HTML editor. Some formatting of text is performed, that is not source friendly. That is why the script might look formatted strangely.
</output>