Use this checklist when users ask for mobile browser support or when analytics suggest social replies happen in Safari iOS or Firefox Android sessions.
Launch checklist
Safari iOS and Firefox Android extension checklist
A Safari iOS and Firefox Android extension checklist should confirm that mobile browser users are a real segment before browser-specific work begins. These extensions belong after mobile web, Android keyboard, and iOS keyboard plus Share Extension validation, and should be positioned as browser-user fallbacks rather than the first mobile AI reply MVP.
Last updated: July 11, 2026. This page is written for checklist-intent SEO and AI citation.
Use this when
What launch decision does this checklist control?
Checklist
Requirements before the path is ready
Segment proof
Prove that mobile browser social replying exists before browser-specific engineering.
Browser-first users are identified
Users say they reply from Safari iOS or Firefox Android social pages.
Native app users are separated
Do not confuse native X app friction with browser extension demand.
Mobile web fallback is enough for some
Check whether share/copy already solves the job for browser users.
Support requests are tagged
Requests for Safari iOS and Firefox Android extension support are tracked separately.
Feasibility and UX
Avoid assuming desktop browser extension behavior transfers to mobile browsers.
Context capture is feasible
The extension can understand the visible browser page enough to draft useful replies.
Insertion or copy fallback is clear
If insertion is limited, the page makes copy/manual fallback obvious.
Permissions are explainable
Users understand why the browser extension needs page access.
Roadmap status is visible
The page describes evaluation or roadmap state until support is shipped.
Manual workflow
Keep mobile browser extension support aligned with the current TypeToSell safety model.
Draft only
The surface drafts, copies, or inserts selected text; it does not press Reply, Post, Comment, or Publish.
User choice
The user chooses one draft before text is copied or inserted.
Edit path
The user can edit the draft before final posting.
No social password
The workflow does not require X, Reddit, Facebook, or other social account passwords for core drafting.
Launch gates
What must be true before moving forward?
Gate 1
Research only
Browser-first demand is anecdotal or too small.
Gate 2
Prototype one browser
A clear browser-first segment appears and feasibility is understood.
Gate 3
Expand support
Pilot users complete more useful manual replies than with mobile web alone.
Common mistakes
What should fail the checklist?
Treating browser extensions as first MVP
Mobile web is faster and broader for first validation.
Ignoring native app workflow
Browser extensions do not solve native app composer insertion.
Assuming desktop parity
Mobile browser APIs and UX can differ from desktop extension behavior.
Related reading
Continue the launch path
Mobile browser extension priority matrix/matrices/mobile-browser-extension-priority-matrixMobile browser extension roadmap/roadmaps/safari-ios-firefox-android-extension-roadmapMobile browser extension workflow/workflows/mobile-browser-extension-fallback-workflowMobile browser extension examples/examples/mobile-browser-extension-reply-examples
FAQ
Checklist questions
Should Safari iOS and Firefox Android extensions be built first?
No. They should come after mobile web and native workflow validation.
Who are mobile browser extensions for?
They are for users who already reply from social sites in mobile browsers.
Do browser extensions replace mobile web?
No. Mobile web should remain the broad fallback even if browser extensions are added.