Push to Kindle sends any text article to PDF or to your ereader (not only Kindle)
Recipe Filter filters recipe pages on blogs and just gets the actual ingredients & instructions
Redirector for a few paywalls where I use a specific proxy
RSS Reader Extension (by Inoreader) - as I use Inoreader for following RSS feeds
Sci Hub Injector adds sci-hub links to many science publishing websites for easy access
Shinigami Eyes highlights trans-friendly and transphobic social media users or websites
uBlock Origin
ViolentMonkey for userscripts
Extensions to be helpful to other people:
Picket Line Notifier tells you if the website you are visiting has workers on strike - useful especially for ecommerce & news publishers
Snowflake is not noticeable for me, but allows other people to use my network as a Tor node or something idk
Wayback Machine archives every page I visit on the Internet Archive.
Fediverse extensions:
FediAct allows me to boost, reply to, follow, etc. on any Mastodon instance without having to open the right link in my own instance. I wish there was something like this for Lemmy and Peertube.
Fedishare allows for one-click sharing to several Fediverse platforms, including Lemmy and Mastodon
PeerTubeify tries to check if a YouTube video you're watching is also on PeerTube
Youtube extensions:
Auto HD / 4k / 8k pour YouTube™ - I use it for the environment, so default quality is 480px (because usually I watch the videos on a small side window so it doesn't change the visible quality)
Clickbait Remover for YouTube - replaces thumbnails with a frame from the video and makes all titles normally named, no all caps
DF YouTube (Distraction Free) - removes the homepage & sidebar on videos to avoid rabbit holes
SponsorBlock auto-skips sponsored segments, intros, credit rolls, etc. on YouTube videos
I'm going to take the opposite approach and say Lemmy is surprisingly active.
I wanted to check an idea of Reddit proportion of lurkers; didn't find actual data and am definitely not emotionally invested enough to make my own, but it took me to the 1% rule, which states that on an online community, roughly 1% of people create content, 9% edit/update/upvote/comment, and 90% are passive consumers of content.
It's very true that Lemmy isn't very active (although it's definitely been better recently!), but given this, I honestly believe it's purely a matter of gaining a critical mass of users. So I see two main approaches:
Comment as much as possible! Sometimes you'll be shouting at the clouds, sometimes you'll lead by example and people will join the conversation;
As a community, let's get more people using Lemmy so that even with the same ratio, the absolute number of posters & commenters will grow.
I've seen the issue on Mastodon when I joined a few years ago, and my friends and I make a point of not using "favs" too much, just boosting (which puts it in your followers' timeline) and commenting/replying. It's a small thing but it's good etiquette and encourages others to do the same.
Firefox user here.
Extensions to be helpful to other people:
Fediverse extensions:
Youtube extensions: