[nmglug] dist-update w/o upgrading Firefox

Hello all, I'd like to run "apt dist-update" but I don't want to upgrade FF as I'm using FF52 ESR as any newer version doesn't support some add-ons I want to keep. Hence I never upgrade it though if the add-ons maintainers adapt to the new FF I certainly will too. Update manager pops up, as usual, every day or tow and I un-tic FF and run the updates. However I wonder if not running "apt dist-update" isn't a good idea or does it not matter? Thanks Brian --