Hi,
⭐⭐My understanding⭐⭐
I have thoroughly reviewed your job description. you need chrome/firefox browser extension which submit multiple tab forms at exact same time.
I have created somehow similar extensions
In recent past, created two very logical extensions
First is "Auto form filler" chrome extension for [login to view URL] This extension fills multi page web form on the website and bring car insurance quotes. You can verify this job through https://www.freelancer.com/projects/html/Fill-external-webpage-form-using/
Second is a "auto online booking" extension which check for the available date. keep checking until not get the desired date & then confirm the booking after resolving the captcha. You can verify this job through https://www.freelancer.com/projects/php/create-firefox-chrome-extension/ .
Well, Its quite easy job. I have created 35+ chrome extensions in different domain like web scraping, website manipulation, automate manual processes etc.
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Some Live Extensions
⭐[login to view URL] (Facebook)
⭐[login to view URL] (Amazon, Ebay)
⭐⭐About Me⭐⭐
I am Sr. Open source developer having 7+ years of experience. I have much experience with native jquery, typescript & browser extension development. I believe my abilities would be perfect for your venture.
Thanks