If you right click near the end of the url field, then select "customize toolbar", you will be taken to a screen where you can move browser elements around.

you will see the missing button and can drag it around until it shows up. You can even place buttons at end of menu bar.

Tried that but the Pocket icon isn't there among the other elements.  ???

I think it is there for you too. Just browse around that customize screen. Then when you find it, aka the shield, click and drag it around the place that is convenient to you.

on the attached pic, i drew an red arrow where it show up on the custome page but is hidden on the browser. That little area use to be called the "over flow", where the icons could not fit on the browser could be stashed behind the overflow icon.

so i would drag it from the extreme far right of that area, and place it next to the address/url field.

but feel free to customize. and if it goes bad for you, we will try to help you out again.  :-)

Thanks so much for your help! I didn't notice the Pocket icon in the upper right corner.  :-)

We are glad to be of help.  :-)