Grab All Files – Downloader & Pages to HTML by Grab All Files – Bulk PDF & File Downloader

Grab All Files is a browser extension with two tools. The file downloader detects downloadable files on the page you are viewing or any URL you enter, lets you batch-download the files you select, and merges multiple PDFs locally in your browser without uploading anything. The page collector starts from the page you have open, finds related pages, and combines the ones you choose into a single searchable HTML file with a table of contents.

This extension has a permanent free plan from the first launch. Free saves files 10 at a time and exports or copies URL lists 10 at a time. In Page Collector, Free shows candidate pages and saves one selected page, with no plan-based count limit on that page's images, ordinary links, or linked files. A one-time Pro license lets you select multiple related pages and combine them into one HTML. Configured safety limits apply to both plans. There is no subscription.

Paid licenses are sold by Serima Kawai, not by Mozilla. Payment is processed via Stripe Checkout on an external purchase page, not inside the extension.

Key features:
- Scan the current page, scan any URL you enter, or crawl a whole site (depth 0–5 or unlimited, up to 100,000 pages)
- Finds files in embedded viewers and files loaded after you open the page.
- Works behind logins — uses your existing browser session, with an optional cookie mode for intranets, LMS/portals, and member-only pages
- Supports pages that load content dynamically and downloads through forms. Site access restrictions still apply.
- Filter by name, title, type, and size with include and exclude rules; sort, de-duplicate, and reorder before downloading
- Choose the file types to search for and add custom extensions.
- Bulk-download with adjustable parallelism, pause/resume, auto-retry, and one-click retry of failed files; organize saved files into folders by type or domain
- Rename downloads from each PDF's title or page heading
- Local PDF merge and local ZIP creation — everything stays in your browser, no cloud upload
- Export a CSV of file URLs, names, sizes, types, and titles
- Web pages to HTML: start from the current page and find related pages automatically, or specify them through menus, paths, sitemaps, or a pasted URL list; review, reorder, and remove pages before anything is collected
- Combine the pages you chose into one searchable, printable HTML file with a table of contents — embed images for offline reading or keep online references, save linked documents alongside it, and optionally export Markdown, JSONL, a manifest, and table data for AI analysis; page collection and HTML generation run on your device
- Right-click actions, scan history, and saved-file badges. The interface supports 10 languages.

About permissions:
Grab All Files does not request blanket website access at installation. Its only required host permission is the specific Supabase backend origin used for license and device handling. Current-page actions can use the temporary activeTab grant; when you select another page or URL, the extension asks for optional access only to that HTTP/HTTPS origin. Persistent content scripts are registered dynamically only for origins you grant and are removed if access is revoked. The extension does not send scan history, page HTML, browsing activity, file contents, analytics, URLs, file names, or personal data to the developer. Outbound traffic to a developer-controlled server is limited to that Supabase backend: license and device handling, plus optional pseudonymous usage statistics, disabled by default and sent only after you explicitly opt in — installation, first launch, category selection, whether scans and downloads ran (with their counts and durations), which controls you used on the extension's own screens, and whether a web-page collection job ran (page counts and outcome only) — that contain only a randomly generated device ID and your plan state, never page content, URLs, file names, or personal data. You can turn the usage statistics off in the extension; only license checks remain.