I use the Firefox app for Android on a regular basis. For a long time I have found one unpleasant problem with tabs, when I open a new tab and notice that the remaining 107 old tabs are open, I cannot close all tabs except the current one. I can close all tabs, but the current one will close too. Sometimes I have to look for a link in the browsing history after that, it can takes several minutes. It would be convenient, in addition to the inactive tabs section, to be able to simply close everything except the current one. Maybe there is already such a function without using third-party mods on Firefox?