Sideview - AI Chat Sidebar by Sideview

Sideview keeps the AI chat you already use open in Firefox's sidebar, so you can ask about what you are reading without switching tabs or losing your place.

Open several chats at once, with the same AI or different ones, each in its own tab. They stay beside every page you visit and come back when you reopen the sidebar.

WORKS WITH THE CHAT YOU USE

ChatGPT, Claude, Gemini and other popular AI chat sites work straight after install, with no extra prompts. The sidebar shows each AI's own website, signed in with your own account, so your plan, history and settings come with it. Hide the ones you don't use and put the rest in your order. The full list is at sideview.app.

NO API KEYS, NO EXTRA ACCOUNT

Sideview uses the accounts you are already signed in to. The free version needs no Sideview account and does not contact Sideview's servers unless you choose to share anonymous usage statistics or suggest an AI. It reads page text only when you choose Send selection to chat, and does not read conversation contents.

FREE

• Sidebar that stays open across tabs; toggle it from the toolbar icon or Alt+Shift+S
• A tab for each chat: rename, pin and star chats, and hover a tab for a preview
• A start page with your starred and recent chats, and a search box once the list grows
• Alt+1 to Alt+9 pick a tab and Alt+0 shows the start page; Alt+W closes a tab and Alt+Z reopens the chat you closed last
• Send selected text to the chat
• Sign-in hand-off: if an AI needs you to sign in in a normal tab, Sideview opens one and brings you back to the sidebar signed in
• Unused tabs sleep to save memory
• Text size for each AI, light/dark theme, start AI, order and visibility
• Back up and restore settings; interface in nine languages

SIDEVIEW PRO

Optional subscription, $5 USD a month or $40 USD a year, plus applicable tax; cancel any time.

• Send the page, a screenshot, an image, a PDF, a video transcript, a link or several tabs to the chat
• Right-click Summarize, Explain and Translate
• Quick search (Alt+Shift+K) for every action, and saved prompts with fill-in blanks, synced through Firefox
• Split view: up to four chats side by side in the sidebar
• Compare up to four AIs with one question, in the sidebar or a full tab, and ask another AI to check an answer
• Export a chat as Markdown or PDF, or send it to Obsidian
• Quick chat dock on web pages, off until you turn it on
• Site rules: open a chosen AI or chat on chosen sites
• Notes beside your chats, with pages inside pages, synced between your computers (optionally end-to-end encrypted)
• Workspaces, reply notifications, added chat sites and optional chat sync between your computers

TEAMS

Optional subscription, at least three seats.

Pro for every member, one invoice, shared prompts and site rules, team defaults and owner/admin/editor/member roles. Invitations are sent by email and also appear after sign-in. Activity sharing starts off on every device. Team prices are at sideview.app/pricing. Cancel from the team page at the end of the paid period.

Pro tools read a page only when you use them. Page text and screenshots go into the chat you chose, never to Sideview.

PRIVACY

The extension has no browsing analytics. Optional, anonymous usage statistics (which features and built-in AIs you use each day, never chats, pages or the sites you add) are off unless you choose to share them. Personal prompts use browser sync. Chat addresses and titles stay on the device unless you turn on cross-computer sync, which sends a limited list through the browser's sync service. Conversations remain with your AI providers. Pro notes sync through your Sideview account so they follow you between computers; you can turn notes sync off in Settings, or set a notes password that encrypts them end to end before they leave the browser.

Connecting an account lets Sideview check your plan and download your team's prompts, rules and defaults. Editors upload content when they share or save it. Opt-in activity sends approximate last seen and combined team-prompt counts, never chat text or browsing history. Firefox asks for optional data permissions for account/team access (including notes sync), chat sync, activity, usage statistics and AI suggestions. The free sidebar works if you decline.

Removing Sideview opens an optional, anonymous feedback page on sideview.app.

Sideview is an independent project and is not affiliated with or endorsed by any of the AI providers it can display. All product names and logos belong to their owners.

• Privacy policy
• Permissions explained