browser extension

Heavy social-media users notice their feeds have collapsed into one comfortable topic loop and they want out, but they don't know where else to look. Existing 'filter bubble' extensions only hide content you dislike, which narrows the feed further instead of broadening it. The opportunity is an extension that measures the topical homogeneity of what you're being shown and periodically injects credible, relevant content from outside the loop.

Shopify Checkout Extensibility broke Klaviyo's auto-install starting August 2025 — the integration appears installed but Active On Site reads zero, ad tracking silently fails, and merchants only notice when ROAS collapses (one DTC brand watched Meta ROAS go 4.2x to under 1x in a quarter). Non-Plus merchants face an August 26 2026 deadline that will trigger another wave of breakage. A continuous install-verifier that checks Active On Site, the 12 events Klaviyo expects, and auto-files a repair, with a ROAS-drop alert tied to tracking failures.

Reddit completed the deprecation of r/all in April 2026, replacing the unfiltered firehose with an algorithmic Home/Popular feed. Power users on Reddit, Bluesky, and tech press are openly mourning the loss of the platform's last uncurated front page — old.reddit.com is the only remaining workaround and Reddit hasn't promised that survives long. There's an opening for a third-party 'real r/all' surfacer that pulls genuine cross-subreddit upvote velocity (no personalization, no engagement bait) the way redditors actually used to discover content.

Chrome silently writes a 4 GB Gemini Nano model (weights.bin) to disk on capable systems; manual deletion triggers automatic re-download, and the most user-visible 'AI Mode' pill in the address bar still routes to cloud servers anyway. Researchers argue the silent install likely violates EU ePrivacy and GDPR rules. There's clear demand for a small cross-platform tool that detects browser-bundled local AI models, lets users quarantine the weights, blocks redownload via OS-level rules, and reports back which features actually break (mostly nothing for typical users).

A growing camp of indie hackers argue that 90% of the personal apps people actually use (workout log, pomodoro, expense tracker, habit tracker, mood journal) are 90% UI and 10% data. The infrastructure stack of React plus Supabase plus auth plus deploy that everyone reaches for is wildly overengineered. The opening is a marketplace of single-HTML-file personal apps (think 1990s shareware) that works offline by default, with one-click optional encrypted sync via a tiny shared backend.

HN users keep openly saying they'd pay YouTube Premium pricing again, on top of Premium, if they could hand YouTube a whitelist and blacklist of topics and have an AI backend honor it... no kid content on adult accounts, no fake-DIY spam, no AI-slop, no rage-bait politics, yes specific creators, yes specific niches. Current 'Do Not Recommend,' SponsorBlock, Unhook, DF Tube all attack pieces of the problem but none let you curate by semantic topic with LLM understanding of the video content itself. Opportunity: a browser extension and mobile overlay that classifies YouTube content with an on-device or cheap cloud LLM and filters per user's topic lists.

Special education teachers are reporting IEP and BIP drafts being silently altered in their district's IEP platforms (Frontline, SEAS, PowerSchool SpEd) and parents arriving at meetings being shown documents they were never part of drafting. Existing IEP software was built for compliance reporting to the state, not for practitioner audit trails or parent transparency. A lightweight extension or companion tool that snapshots IEP drafts locally, shows diffs, and generates a parent-shareable change log is a timely trust-and-safety play, especially with ESSA accountability reporting and growing IEP-based litigation.

Reddit permanently killed r/all on April 2, 2026, redirecting all traffic to algorithmic Home/r/popular. Longtime users want a third-party client or web app that reconstructs the raw, unpersonalized upvote-ranked firehose across all public subs (old r/all behavior) using the public JSON API plus caching.