Although Text Marker functions well, it has a conflict with Google Docs and Google Sheets that causes computer memory to saturate, leading to either the computer locking up (usually) or FireFox crashing.

Text Marker as the cause was hard to track down (trial and error with the extensions I use).

SYMPTOMS: My computer has 16 gb of RAM, and typically is running with 8 or 9 gb free memory. As soon as I load one of the Google workspaces I start getting pops saying (initially) trying to connect, and then repeatedly "reconnecting". The "memory commit" (observed with ProcessExplorer) quickly runs up from a few gigbytes up over 30 GB, and I've seen as much as 36 GB at the crash point. Meanwhile, the free memory runs down to a few thousand MB (MB!) and eventually to only 92 MB.

I have isolated this problem to Text Marker as the cause. I get a similar problem when doing lots of scolling through statutes, for example here: https://www.akleg.gov/basis/statutes.asp#43.55.020