The plus sign got removed from Google search query

Hello everyone. I'm dealing with something a bit strange. When I try to use Firefox on Linux to search for things with Google, the `+` character is automatically removed from the query string. For example: * Searching for `c++`, I got `c` * Searching for `g++`, I got `g`. This issue doesn't happen for DuckDuckGo, but only Google (using the same browser, just different tabs). I don't have (and don't plan to install) other browsers on my linux box to try, but from another machine in the same network I didn't have this issue with Safari / Chrome. I'm using Firefox for Linux on Fedora Sway Spin. I created a screen recording but the forum doesn't allow posting video. I can share it if needed. The issue happened locally (I think couple of days go, earlier I was able to search for C++ related stuff troubles). Please let me know if there's anything I can try to fix this. Thank you very much in advance