There are snippets at the bottom of the New Tab Page in Firefox, and i clicked on one and it took me here - https://blog.mozilla.org/internetcitizen/2018/05/23/gdpr-mozilla/?snippet_name=8315#utm_source=desktop-snippet&utm_medium=snippet&utm_campaign=13thingsGDPR&utm_term=8315&utm_content=REL

My question is how do i create a Parameter for this? i tried everything and nothing works to completely clean it, only partially clean it. And it's not because of extensions on Mozilla websites because i have set the correct preferences in about:config to fix that.

Also, on certain Amazon pages, such as https://www.amazon.com/dp/B013CCTJKE - if you change options such as 32 GB, 64 GB and 128 GB, sometimes it will add ?th=1 to the end of the URL, if i delete ?th=1 and press enter the URL will go back to a complete clean URL. is there anyway to create a parameter for this? i've seen some product pages, the ?th=1 will always come back no matter what, which makes me believe there is no parameter to create for this.

i've tried th@amazon.com and it doesn't work. Maybe you can take a look at this and figure something out.

Thank You in advance.

*Edit*

i found another Amazon URL that i can't figure out how to clean with a parameter - https://www.amazon.com/dp/B00AZWYUA4?aaxitk=EHCrA6mbNmFFgn2BVN57lg&pd_rd_i=B00AZWYUA4&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=5582544217303223519&pf_rd_s=desktop-sx-top-slot&pf_rd_t=301&pf_rd_i=rOtring+600&hsa_cr_id=2522701590101&_encoding=UTF8&tag=cavemancircus-20&linkCode=ur2&linkId=c1fb83f30f4992600b99db7c319e6f7d&camp=1789&creative=9325