Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox at startup question

more options

Is there a way to run multiple instances of Firefox at startup? I have it set to run at startup...it opens and loads all my tabs, just like I want. However, I would also like it to open another window as well. Is this even possible?

Is there a way to run multiple instances of Firefox at startup? I have it set to run at startup...it opens and loads all my tabs, just like I want. However, I would also like it to open another window as well. Is this even possible?

Chosen solution

Sorry, had to watch a bit of TV.

Two shortcuts is good. For the second one, you can modify the command line as follows:

(1) right-click the shortcut, then click Properties

(2) Windows should select the Shortcut tab, but if it didn't, click that tab

(3) Edit the Target line as needed

Usually starts off as something like this:

"C:\Program Files\Mozilla Firefox\firefox.exe"

That will either display your home page(s), or restore your previous session if it's the initial launch.

Then you trick it out with what you want it to do.

For example, for a blank tab in a new window instead of your home pages:

"C:\Program Files\Mozilla Firefox\firefox.exe" -new-window about:blank

Read this answer in context 👍 0

All Replies (6)

more options

How do you have Firefox set to run at startup?

There is a -new-window command-line switch that could be helpful to you. You may be able to add it to your current command, or call Firefox a second time with this switch.

https://developer.mozilla.org/docs/Mozilla/Command_Line_Options#Browser

more options

I simply dragged Firefox into the startup folder since it wasn't an option to add it (that I could figure out) using the startup programs in the settings menu or through the task manager. Where would I add the line you mentioned? In config within the browser? Thanks for taking the time to answer!

more options

I'm guessing that you mean entering that line using the command prompt. Like dir-username then pick folder "startup." Then what? Should I just run scripts in that folder to get what I want rather than drag and drop. Can you tell I have no idea what I'm doing? I can probably figure out what your saying by searching, if you could please point me in the right direction. Obviously I posted here because I couldn't find an answer even resembling what I'm asking to do. Thanks again for your help

more options

Ok. Last update, I promise. Dragging another Firefox shortcut into Startup made it open 2 instances. One with my home tabs and one blank. This is as close as I'm going to get because I certainly don't think there would be a way to have different tabs open in the 2 windows.

more options

Chosen Solution

Sorry, had to watch a bit of TV.

Two shortcuts is good. For the second one, you can modify the command line as follows:

(1) right-click the shortcut, then click Properties

(2) Windows should select the Shortcut tab, but if it didn't, click that tab

(3) Edit the Target line as needed

Usually starts off as something like this:

"C:\Program Files\Mozilla Firefox\firefox.exe"

That will either display your home page(s), or restore your previous session if it's the initial launch.

Then you trick it out with what you want it to do.

For example, for a blank tab in a new window instead of your home pages:

"C:\Program Files\Mozilla Firefox\firefox.exe" -new-window about:blank

more options

Cool. Thank you so much jscher2000!