Hi, The newest Firefox has an issue with properly parsing the javascript links in the ACS research journal articles. In these research articles, citations are clickable numbers in parenthesis. Clicking on them leads to a pop-up frame that gives detailed reference article information. However, with the latest version of Firefox these citation links will only respond properly to the first click ever on the page. After you close the pop-up frame, any subsequent clicks on any of these links will have no response. I attach an example article below. This bug has been repeated under Trouble Shoot Mode and I do not encounter the same issue with Chrome brower. https://pubs.acs.org/doi/10.1021/jacsau.2c00048