I didn’t get the tools on generative fill

Here's a page on using Generative Fill which may be helpful:
https://helpx.adobe.com/firefly/edit-images/transform-images-using-generative-fill/add-or-replace-objects.html  

Hello @nasif_3710,

Thank you for your message. I am sorry you are having this problem. 

If you are using a mobile device and do not see the Insert/Remove/Expand controls on the bottom or left, try a two finger shrink of the image or check the top bar to see if there is a Insert/Remove/Expand menu.  If this does not solve your problem, please include a screen shot as @Oh.N8 requested.

Thanks,
    droopy

Hey @nasif_3710 

Could you provide a screenshot? so, we can help you better.

Cheers

O. Nate